20562928

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{4447}}^1$

素因数の和:4489

約数の個数: 30

約数和(自身を含む): 42331616

約数和(自身を除く): 21768688

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 289, 578, 1156, 2312, 4447, 4624, 8894, 17788, 35576, 71152, 75599, 151198, 302396, 604792, 1209584, 1285183, 2570366, 5140732, 10281464, 20562928]

約数ペア:

[(1, 20562928), (2, 10281464), (4, 5140732), (8, 2570366), (16, 1285183), (17, 1209584), (34, 604792), (68, 302396), (136, 151198), (272, 75599), (289, 71152), (578, 35576), (1156, 17788), (2312, 8894), (4447, 4624)]