18984364

素因数分解:

$2^2\times 7^3\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:263

約数の個数: 48

約数和(自身を含む): 39412800

約数和(自身を除く): 20428436

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 101, 137, 196, 202, 274, 343, 404, 548, 686, 707, 959, 1372, 1414, 1918, 2828, 3836, 4949, 6713, 9898, 13426, 13837, 19796, 26852, 27674, 34643, 46991, 55348, 69286, 93982, 96859, 138572, 187964, 193718, 387436, 678013, 1356026, 2712052, 4746091, 9492182, 18984364]

約数ペア:

[(1, 18984364), (2, 9492182), (4, 4746091), (7, 2712052), (14, 1356026), (28, 678013), (49, 387436), (98, 193718), (101, 187964), (137, 138572), (196, 96859), (202, 93982), (274, 69286), (343, 55348), (404, 46991), (548, 34643), (686, 27674), (707, 26852), (959, 19796), (1372, 13837), (1414, 13426), (1918, 9898), (2828, 6713), (3836, 4949)]