20984834

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 36224496

約数和(自身を除く): 15239662

約数列:

[1, 2, 13, 17, 26, 34, 197, 221, 241, 394, 442, 482, 2561, 3133, 3349, 4097, 5122, 6266, 6698, 8194, 43537, 47477, 53261, 87074, 94954, 106522, 617201, 807109, 1234402, 1614218, 10492417, 20984834]

約数ペア:

[(1, 20984834), (2, 10492417), (13, 1614218), (17, 1234402), (26, 807109), (34, 617201), (197, 106522), (221, 94954), (241, 87074), (394, 53261), (442, 47477), (482, 43537), (2561, 8194), (3133, 6698), (3349, 6266), (4097, 5122)]