21157488

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1$

素因数の和:100

約数の個数: 180

約数和(自身を含む): 70015608

約数和(自身を除く): 48858120

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 19, 22, 24, 33, 36, 37, 38, 44, 48, 57, 66, 72, 74, 76, 88, 99, 111, 114, 132, 144, 148, 152, 171, 176, 198, 209, 222, 228, 264, 296, 304, 333, 342, 361, 396, 407, 418, 444, 456, 528, 592, 627, 666, 684, 703, 722, 792, 814, 836, 888, 912, 1083, 1221, 1254, 1332, 1368, 1406, 1444, 1584, 1628, 1672, 1776, 1881, 2109, 2166, 2442, 2508, 2664, 2736, 2812, 2888, 3249, 3256, 3344, 3663, 3762, 3971, 4218, 4332, 4884, 5016, 5328, 5624, 5776, 6327, 6498, 6512, 7326, 7524, 7733, 7942, 8436, 8664, 9768, 10032, 11248, 11913, 12654, 12996, 13357, 14652, 15048, 15466, 15884, 16872, 17328, 19536, 23199, 23826, 25308, 25992, 26714, 29304, 30096, 30932, 31768, 33744, 35739, 40071, 46398, 47652, 50616, 51984, 53428, 58608, 61864, 63536, 69597, 71478, 80142, 92796, 95304, 101232, 106856, 120213, 123728, 139194, 142956, 146927, 160284, 185592, 190608, 213712, 240426, 278388, 285912, 293854, 320568, 371184, 440781, 480852, 556776, 571824, 587708, 641136, 881562, 961704, 1113552, 1175416, 1322343, 1763124, 1923408, 2350832, 2644686, 3526248, 5289372, 7052496, 10578744, 21157488]

約数ペア:

[(1, 21157488), (2, 10578744), (3, 7052496), (4, 5289372), (6, 3526248), (8, 2644686), (9, 2350832), (11, 1923408), (12, 1763124), (16, 1322343), (18, 1175416), (19, 1113552), (22, 961704), (24, 881562), (33, 641136), (36, 587708), (37, 571824), (38, 556776), (44, 480852), (48, 440781), (57, 371184), (66, 320568), (72, 293854), (74, 285912), (76, 278388), (88, 240426), (99, 213712), (111, 190608), (114, 185592), (132, 160284), (144, 146927), (148, 142956), (152, 139194), (171, 123728), (176, 120213), (198, 106856), (209, 101232), (222, 95304), (228, 92796), (264, 80142), (296, 71478), (304, 69597), (333, 63536), (342, 61864), (361, 58608), (396, 53428), (407, 51984), (418, 50616), (444, 47652), (456, 46398), (528, 40071), (592, 35739), (627, 33744), (666, 31768), (684, 30932), (703, 30096), (722, 29304), (792, 26714), (814, 25992), (836, 25308), (888, 23826), (912, 23199), (1083, 19536), (1221, 17328), (1254, 16872), (1332, 15884), (1368, 15466), (1406, 15048), (1444, 14652), (1584, 13357), (1628, 12996), (1672, 12654), (1776, 11913), (1881, 11248), (2109, 10032), (2166, 9768), (2442, 8664), (2508, 8436), (2664, 7942), (2736, 7733), (2812, 7524), (2888, 7326), (3249, 6512), (3256, 6498), (3344, 6327), (3663, 5776), (3762, 5624), (3971, 5328), (4218, 5016), (4332, 4884)]