21965920

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:212

約数の個数: 96

約数和(自身を含む): 55738368

約数和(自身を除く): 33772448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 47, 80, 92, 94, 115, 127, 160, 184, 188, 230, 235, 254, 368, 376, 460, 470, 508, 635, 736, 752, 920, 940, 1016, 1081, 1270, 1504, 1840, 1880, 2032, 2162, 2540, 2921, 3680, 3760, 4064, 4324, 5080, 5405, 5842, 5969, 7520, 8648, 10160, 10810, 11684, 11938, 14605, 17296, 20320, 21620, 23368, 23876, 29210, 29845, 34592, 43240, 46736, 47752, 58420, 59690, 86480, 93472, 95504, 116840, 119380, 137287, 172960, 191008, 233680, 238760, 274574, 467360, 477520, 549148, 686435, 955040, 1098296, 1372870, 2196592, 2745740, 4393184, 5491480, 10982960, 21965920]

約数ペア:

[(1, 21965920), (2, 10982960), (4, 5491480), (5, 4393184), (8, 2745740), (10, 2196592), (16, 1372870), (20, 1098296), (23, 955040), (32, 686435), (40, 549148), (46, 477520), (47, 467360), (80, 274574), (92, 238760), (94, 233680), (115, 191008), (127, 172960), (160, 137287), (184, 119380), (188, 116840), (230, 95504), (235, 93472), (254, 86480), (368, 59690), (376, 58420), (460, 47752), (470, 46736), (508, 43240), (635, 34592), (736, 29845), (752, 29210), (920, 23876), (940, 23368), (1016, 21620), (1081, 20320), (1270, 17296), (1504, 14605), (1840, 11938), (1880, 11684), (2032, 10810), (2162, 10160), (2540, 8648), (2921, 7520), (3680, 5969), (3760, 5842), (4064, 5405), (4324, 5080)]