20678449

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^2$

素因数の和:165

約数の個数: 24

約数和(自身を含む): 24700608

約数和(自身を除く): 4022159

約数列:

[1, 11, 23, 37, 47, 253, 407, 517, 851, 1081, 1739, 2209, 9361, 11891, 19129, 24299, 39997, 50807, 81733, 439967, 558877, 899063, 1879859, 20678449]

約数ペア:

[(1, 20678449), (11, 1879859), (23, 899063), (37, 558877), (47, 439967), (253, 81733), (407, 50807), (517, 39997), (851, 24299), (1081, 19129), (1739, 11891), (2209, 9361)]