19912945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{3691}}^1$

素因数の和:3792

約数の個数: 16

約数和(自身を含む): 26050752

約数和(自身を除く): 6137807

約数列:

[1, 5, 13, 65, 83, 415, 1079, 3691, 5395, 18455, 47983, 239915, 306353, 1531765, 3982589, 19912945]

約数ペア:

[(1, 19912945), (5, 3982589), (13, 1531765), (65, 306353), (83, 239915), (415, 47983), (1079, 18455), (3691, 5395)]