21096490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124097}}^1$

素因数の和:124121

約数の個数: 16

約数和(自身を含む): 40207752

約数和(自身を除く): 19111262

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 124097, 248194, 620485, 1240970, 2109649, 4219298, 10548245, 21096490]

約数ペア:

[(1, 21096490), (2, 10548245), (5, 4219298), (10, 2109649), (17, 1240970), (34, 620485), (85, 248194), (170, 124097)]