20571088

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{75629}}^1$

素因数の和:75654

約数の個数: 20

約数和(自身を含む): 42201540

約数和(自身を除く): 21630452

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 75629, 151258, 302516, 605032, 1210064, 1285693, 2571386, 5142772, 10285544, 20571088]

約数ペア:

[(1, 20571088), (2, 10285544), (4, 5142772), (8, 2571386), (16, 1285693), (17, 1210064), (34, 605032), (68, 302516), (136, 151258), (272, 75629)]