21706118

素因数分解:

$2^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{3631}}^1$

素因数の和:3708

約数の個数: 24

約数和(自身を含む): 38506464

約数和(自身を除く): 16800346

約数列:

[1, 2, 7, 14, 49, 61, 98, 122, 427, 854, 2989, 3631, 5978, 7262, 25417, 50834, 177919, 221491, 355838, 442982, 1550437, 3100874, 10853059, 21706118]

約数ペア:

[(1, 21706118), (2, 10853059), (7, 3100874), (14, 1550437), (49, 442982), (61, 355838), (98, 221491), (122, 177919), (427, 50834), (854, 25417), (2989, 7262), (3631, 5978)]