21429605

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{4133}}^1$

素因数の和:4216

約数の個数: 16

約数和(自身を含む): 27681264

約数和(自身を除く): 6251659

約数列:

[1, 5, 17, 61, 85, 305, 1037, 4133, 5185, 20665, 70261, 252113, 351305, 1260565, 4285921, 21429605]

約数ペア:

[(1, 21429605), (5, 4285921), (17, 1260565), (61, 351305), (85, 252113), (305, 70261), (1037, 20665), (4133, 5185)]