21155079

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{617}}^1\times {\mathrm{1039}}^1$

素因数の和:1670

約数の個数: 16

約数和(自身を含む): 30850560

約数和(自身を除く): 9695481

約数列:

[1, 3, 11, 33, 617, 1039, 1851, 3117, 6787, 11429, 20361, 34287, 641063, 1923189, 7051693, 21155079]

約数ペア:

[(1, 21155079), (3, 7051693), (11, 1923189), (33, 641063), (617, 34287), (1039, 20361), (1851, 11429), (3117, 6787)]