21791716

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{151}}^1\times {\mathrm{331}}^1$

素因数の和:595

約数の個数: 24

約数和(自身を含む): 38857280

約数和(自身を除く): 17065564

約数列:

[1, 2, 4, 109, 151, 218, 302, 331, 436, 604, 662, 1324, 16459, 32918, 36079, 49981, 65836, 72158, 99962, 144316, 199924, 5447929, 10895858, 21791716]

約数ペア:

[(1, 21791716), (2, 10895858), (4, 5447929), (109, 199924), (151, 144316), (218, 99962), (302, 72158), (331, 65836), (436, 49981), (604, 36079), (662, 32918), (1324, 16459)]