217236415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{9949}}^1$

素因数の和:10362

約数の個数: 16

約数和(自身を含む): 285127200

約数和(自身を除く): 67890785

約数列:

[1, 5, 11, 55, 397, 1985, 4367, 9949, 21835, 49745, 109439, 547195, 3949753, 19748765, 43447283, 217236415]

約数ペア:

[(1, 217236415), (5, 43447283), (11, 19748765), (55, 3949753), (397, 547195), (1985, 109439), (4367, 49745), (9949, 21835)]