21117230

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{7307}}^1$

素因数の和:7348

約数の個数: 24

約数和(自身を含む): 40384008

約数和(自身を除く): 19266778

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 7307, 14614, 36535, 73070, 124219, 248438, 621095, 1242190, 2111723, 4223446, 10558615, 21117230]

約数ペア:

[(1, 21117230), (2, 10558615), (5, 4223446), (10, 2111723), (17, 1242190), (34, 621095), (85, 248438), (170, 124219), (289, 73070), (578, 36535), (1445, 14614), (2890, 7307)]