21627604

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{353}}^1$

素因数の和:444

約数の個数: 36

約数和(自身を含む): 41080284

約数和(自身を除く): 19452680

約数列:

[1, 2, 4, 17, 34, 53, 68, 106, 212, 289, 353, 578, 706, 901, 1156, 1412, 1802, 3604, 6001, 12002, 15317, 18709, 24004, 30634, 37418, 61268, 74836, 102017, 204034, 318053, 408068, 636106, 1272212, 5406901, 10813802, 21627604]

約数ペア:

[(1, 21627604), (2, 10813802), (4, 5406901), (17, 1272212), (34, 636106), (53, 408068), (68, 318053), (106, 204034), (212, 102017), (289, 74836), (353, 61268), (578, 37418), (706, 30634), (901, 24004), (1156, 18709), (1412, 15317), (1802, 12002), (3604, 6001)]