21561372

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{719}}^1$

素因数の和:760

約数の個数: 108

約数和(自身を含む): 67223520

約数和(自身を除く): 45662148

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 49, 51, 63, 68, 84, 98, 102, 119, 126, 147, 153, 196, 204, 238, 252, 294, 306, 357, 441, 476, 588, 612, 714, 719, 833, 882, 1071, 1428, 1438, 1666, 1764, 2142, 2157, 2499, 2876, 3332, 4284, 4314, 4998, 5033, 6471, 7497, 8628, 9996, 10066, 12223, 12942, 14994, 15099, 20132, 24446, 25884, 29988, 30198, 35231, 36669, 45297, 48892, 60396, 70462, 73338, 85561, 90594, 105693, 110007, 140924, 146676, 171122, 181188, 211386, 220014, 256683, 317079, 342244, 422772, 440028, 513366, 598927, 634158, 770049, 1026732, 1197854, 1268316, 1540098, 1796781, 2395708, 3080196, 3593562, 5390343, 7187124, 10780686, 21561372]

約数ペア:

[(1, 21561372), (2, 10780686), (3, 7187124), (4, 5390343), (6, 3593562), (7, 3080196), (9, 2395708), (12, 1796781), (14, 1540098), (17, 1268316), (18, 1197854), (21, 1026732), (28, 770049), (34, 634158), (36, 598927), (42, 513366), (49, 440028), (51, 422772), (63, 342244), (68, 317079), (84, 256683), (98, 220014), (102, 211386), (119, 181188), (126, 171122), (147, 146676), (153, 140924), (196, 110007), (204, 105693), (238, 90594), (252, 85561), (294, 73338), (306, 70462), (357, 60396), (441, 48892), (476, 45297), (588, 36669), (612, 35231), (714, 30198), (719, 29988), (833, 25884), (882, 24446), (1071, 20132), (1428, 15099), (1438, 14994), (1666, 12942), (1764, 12223), (2142, 10066), (2157, 9996), (2499, 8628), (2876, 7497), (3332, 6471), (4284, 5033), (4314, 4998)]