21220165

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{6089}}^1$

素因数の和:6152

約数の個数: 16

約数和(自身を含む): 27624240

約数和(自身を除く): 6404075

約数列:

[1, 5, 17, 41, 85, 205, 697, 3485, 6089, 30445, 103513, 249649, 517565, 1248245, 4244033, 21220165]

約数ペア:

[(1, 21220165), (5, 4244033), (17, 1248245), (41, 517565), (85, 249649), (205, 103513), (697, 30445), (3485, 6089)]