21535668

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1$

素因数の和:502

約数の個数: 144

約数和(自身を含む): 72019584

約数和(自身を除く): 50483916

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 17, 18, 21, 22, 28, 33, 34, 36, 42, 44, 51, 63, 66, 68, 77, 84, 99, 102, 119, 126, 132, 153, 154, 187, 198, 204, 231, 238, 252, 306, 308, 357, 374, 396, 457, 462, 476, 561, 612, 693, 714, 748, 914, 924, 1071, 1122, 1309, 1371, 1386, 1428, 1683, 1828, 2142, 2244, 2618, 2742, 2772, 3199, 3366, 3927, 4113, 4284, 5027, 5236, 5484, 6398, 6732, 7769, 7854, 8226, 9597, 10054, 11781, 12796, 15081, 15538, 15708, 16452, 19194, 20108, 23307, 23562, 28791, 30162, 31076, 35189, 38388, 45243, 46614, 47124, 54383, 57582, 60324, 69921, 70378, 85459, 90486, 93228, 105567, 108766, 115164, 139842, 140756, 163149, 170918, 180972, 211134, 217532, 256377, 279684, 316701, 326298, 341836, 422268, 489447, 512754, 598213, 633402, 652596, 769131, 978894, 1025508, 1196426, 1266804, 1538262, 1794639, 1957788, 2392852, 3076524, 3589278, 5383917, 7178556, 10767834, 21535668]

約数ペア:

[(1, 21535668), (2, 10767834), (3, 7178556), (4, 5383917), (6, 3589278), (7, 3076524), (9, 2392852), (11, 1957788), (12, 1794639), (14, 1538262), (17, 1266804), (18, 1196426), (21, 1025508), (22, 978894), (28, 769131), (33, 652596), (34, 633402), (36, 598213), (42, 512754), (44, 489447), (51, 422268), (63, 341836), (66, 326298), (68, 316701), (77, 279684), (84, 256377), (99, 217532), (102, 211134), (119, 180972), (126, 170918), (132, 163149), (153, 140756), (154, 139842), (187, 115164), (198, 108766), (204, 105567), (231, 93228), (238, 90486), (252, 85459), (306, 70378), (308, 69921), (357, 60324), (374, 57582), (396, 54383), (457, 47124), (462, 46614), (476, 45243), (561, 38388), (612, 35189), (693, 31076), (714, 30162), (748, 28791), (914, 23562), (924, 23307), (1071, 20108), (1122, 19194), (1309, 16452), (1371, 15708), (1386, 15538), (1428, 15081), (1683, 12796), (1828, 11781), (2142, 10054), (2244, 9597), (2618, 8226), (2742, 7854), (2772, 7769), (3199, 6732), (3366, 6398), (3927, 5484), (4113, 5236), (4284, 5027)]