221641308

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:449

約数の個数: 216

約数和(自身を含む): 728254800

約数和(自身を除く): 506613492

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 19, 21, 28, 34, 36, 38, 42, 49, 51, 57, 63, 68, 76, 84, 98, 102, 114, 119, 126, 133, 147, 153, 171, 196, 204, 228, 238, 252, 266, 294, 306, 323, 342, 357, 389, 399, 441, 476, 532, 588, 612, 646, 684, 714, 778, 798, 833, 882, 931, 969, 1071, 1167, 1197, 1292, 1428, 1556, 1596, 1666, 1764, 1862, 1938, 2142, 2261, 2334, 2394, 2499, 2723, 2793, 2907, 3332, 3501, 3724, 3876, 4284, 4522, 4668, 4788, 4998, 5446, 5586, 5814, 6613, 6783, 7002, 7391, 7497, 8169, 8379, 9044, 9996, 10892, 11172, 11628, 13226, 13566, 14004, 14782, 14994, 15827, 16338, 16758, 19061, 19839, 20349, 22173, 24507, 26452, 27132, 29564, 29988, 31654, 32676, 33516, 38122, 39678, 40698, 44346, 46291, 47481, 49014, 51737, 57183, 59517, 63308, 66519, 76244, 79356, 81396, 88692, 92582, 94962, 98028, 103474, 114366, 119034, 125647, 133038, 138873, 142443, 155211, 171549, 185164, 189924, 206948, 228732, 238068, 251294, 266076, 277746, 284886, 310422, 324037, 343098, 362159, 376941, 416619, 465633, 502588, 555492, 569772, 620844, 648074, 686196, 724318, 753882, 833238, 879529, 931266, 972111, 1086477, 1130823, 1296148, 1448636, 1507764, 1666476, 1759058, 1862532, 1944222, 2172954, 2261646, 2638587, 2916333, 3259431, 3518116, 3888444, 4345908, 4523292, 5277174, 5832666, 6156703, 6518862, 7915761, 10554348, 11665332, 12313406, 13037724, 15831522, 18470109, 24626812, 31663044, 36940218, 55410327, 73880436, 110820654, 221641308]

約数ペア:

[(1, 221641308), (2, 110820654), (3, 73880436), (4, 55410327), (6, 36940218), (7, 31663044), (9, 24626812), (12, 18470109), (14, 15831522), (17, 13037724), (18, 12313406), (19, 11665332), (21, 10554348), (28, 7915761), (34, 6518862), (36, 6156703), (38, 5832666), (42, 5277174), (49, 4523292), (51, 4345908), (57, 3888444), (63, 3518116), (68, 3259431), (76, 2916333), (84, 2638587), (98, 2261646), (102, 2172954), (114, 1944222), (119, 1862532), (126, 1759058), (133, 1666476), (147, 1507764), (153, 1448636), (171, 1296148), (196, 1130823), (204, 1086477), (228, 972111), (238, 931266), (252, 879529), (266, 833238), (294, 753882), (306, 724318), (323, 686196), (342, 648074), (357, 620844), (389, 569772), (399, 555492), (441, 502588), (476, 465633), (532, 416619), (588, 376941), (612, 362159), (646, 343098), (684, 324037), (714, 310422), (778, 284886), (798, 277746), (833, 266076), (882, 251294), (931, 238068), (969, 228732), (1071, 206948), (1167, 189924), (1197, 185164), (1292, 171549), (1428, 155211), (1556, 142443), (1596, 138873), (1666, 133038), (1764, 125647), (1862, 119034), (1938, 114366), (2142, 103474), (2261, 98028), (2334, 94962), (2394, 92582), (2499, 88692), (2723, 81396), (2793, 79356), (2907, 76244), (3332, 66519), (3501, 63308), (3724, 59517), (3876, 57183), (4284, 51737), (4522, 49014), (4668, 47481), (4788, 46291), (4998, 44346), (5446, 40698), (5586, 39678), (5814, 38122), (6613, 33516), (6783, 32676), (7002, 31654), (7391, 29988), (7497, 29564), (8169, 27132), (8379, 26452), (9044, 24507), (9996, 22173), (10892, 20349), (11172, 19839), (11628, 19061), (13226, 16758), (13566, 16338), (14004, 15827), (14782, 14994)]