16861025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{409}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 22420440

約数和(自身を除く): 5559415

約数列:

[1, 5, 17, 25, 85, 97, 409, 425, 485, 1649, 2045, 2425, 6953, 8245, 10225, 34765, 39673, 41225, 173825, 198365, 674441, 991825, 3372205, 16861025]

約数ペア:

[(1, 16861025), (5, 3372205), (17, 991825), (25, 674441), (85, 198365), (97, 173825), (409, 41225), (425, 39673), (485, 34765), (1649, 10225), (2045, 8245), (2425, 6953)]