21777035

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20071}}^1$

素因数の和:20114

約数の個数: 16

約数和(自身を含む): 30830592

約数和(自身を除く): 9053557

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 20071, 100355, 140497, 622201, 702485, 3111005, 4355407, 21777035]

約数ペア:

[(1, 21777035), (5, 4355407), (7, 3111005), (31, 702485), (35, 622201), (155, 140497), (217, 100355), (1085, 20071)]