20389577

素因数分解:

${\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{293}}^1$

素因数の和:460

約数の個数: 16

約数和(自身を含む): 22670928

約数和(自身を除く): 2281351

約数列:

[1, 13, 53, 101, 293, 689, 1313, 3809, 5353, 15529, 29593, 69589, 201877, 384709, 1568429, 20389577]

約数ペア:

[(1, 20389577), (13, 1568429), (53, 384709), (101, 201877), (293, 69589), (689, 29593), (1313, 15529), (3809, 5353)]