18964645

素因数分解:

$5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1637}}^1$

素因数の和:1980

約数の個数: 16

約数和(自身を含む): 26103168

約数和(自身を除く): 7138523

約数列:

[1, 5, 7, 35, 331, 1637, 1655, 2317, 8185, 11459, 11585, 57295, 541847, 2709235, 3792929, 18964645]

約数ペア:

[(1, 18964645), (5, 3792929), (7, 2709235), (35, 541847), (331, 57295), (1637, 11585), (1655, 11459), (2317, 8185)]