20573332

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^2$

素因数の和:125

約数の個数: 54

約数和(自身を含む): 42331002

約数和(自身を除く): 21757670

約数列:

[1, 2, 4, 13, 17, 26, 34, 37, 52, 68, 74, 148, 221, 289, 442, 481, 578, 629, 884, 962, 1156, 1258, 1369, 1924, 2516, 2738, 3757, 5476, 7514, 8177, 10693, 15028, 16354, 17797, 21386, 23273, 32708, 35594, 42772, 46546, 71188, 93092, 139009, 278018, 302549, 395641, 556036, 605098, 791282, 1210196, 1582564, 5143333, 10286666, 20573332]

約数ペア:

[(1, 20573332), (2, 10286666), (4, 5143333), (13, 1582564), (17, 1210196), (26, 791282), (34, 605098), (37, 556036), (52, 395641), (68, 302549), (74, 278018), (148, 139009), (221, 93092), (289, 71188), (442, 46546), (481, 42772), (578, 35594), (629, 32708), (884, 23273), (962, 21386), (1156, 17797), (1258, 16354), (1369, 15028), (1924, 10693), (2516, 8177), (2738, 7514), (3757, 5476)]