21265844

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{1129}}^1$

素因数の和:1427

約数の個数: 24

約数和(自身を含む): 39581640

約数和(自身を除く): 18315796

約数列:

[1, 2, 4, 17, 34, 68, 277, 554, 1108, 1129, 2258, 4516, 4709, 9418, 18836, 19193, 38386, 76772, 312733, 625466, 1250932, 5316461, 10632922, 21265844]

約数ペア:

[(1, 21265844), (2, 10632922), (4, 5316461), (17, 1250932), (34, 625466), (68, 312733), (277, 76772), (554, 38386), (1108, 19193), (1129, 18836), (2258, 9418), (4516, 4709)]