21275552

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 44235072

約数和(自身を除く): 22959520

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 137, 184, 211, 274, 368, 422, 548, 736, 844, 1096, 1688, 2192, 3151, 3376, 4384, 4853, 6302, 6752, 9706, 12604, 19412, 25208, 28907, 38824, 50416, 57814, 77648, 100832, 115628, 155296, 231256, 462512, 664861, 925024, 1329722, 2659444, 5318888, 10637776, 21275552]

約数ペア:

[(1, 21275552), (2, 10637776), (4, 5318888), (8, 2659444), (16, 1329722), (23, 925024), (32, 664861), (46, 462512), (92, 231256), (137, 155296), (184, 115628), (211, 100832), (274, 77648), (368, 57814), (422, 50416), (548, 38824), (736, 28907), (844, 25208), (1096, 19412), (1688, 12604), (2192, 9706), (3151, 6752), (3376, 6302), (4384, 4853)]