21958124

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{701}}^1$

素因数の和:937

約数の個数: 24

約数和(自身を含む): 39626496

約数和(自身を除く): 17668372

約数列:

[1, 2, 4, 41, 82, 164, 191, 382, 701, 764, 1402, 2804, 7831, 15662, 28741, 31324, 57482, 114964, 133891, 267782, 535564, 5489531, 10979062, 21958124]

約数ペア:

[(1, 21958124), (2, 10979062), (4, 5489531), (41, 535564), (82, 267782), (164, 133891), (191, 114964), (382, 57482), (701, 31324), (764, 28741), (1402, 15662), (2804, 7831)]