21521577

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{617}}^1$

素因数の和:789

約数の個数: 32

約数和(自身を含む): 36071424

約数和(自身を除く): 14549847

約数列:

[1, 3, 7, 11, 21, 33, 77, 151, 231, 453, 617, 1057, 1661, 1851, 3171, 4319, 4983, 6787, 11627, 12957, 20361, 34881, 47509, 93167, 142527, 279501, 652169, 1024837, 1956507, 3074511, 7173859, 21521577]

約数ペア:

[(1, 21521577), (3, 7173859), (7, 3074511), (11, 1956507), (21, 1024837), (33, 652169), (77, 279501), (151, 142527), (231, 93167), (453, 47509), (617, 34881), (1057, 20361), (1661, 12957), (1851, 11627), (3171, 6787), (4319, 4983)]