21791644

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{571}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 46126080

約数和(自身を除く): 24334436

約数列:

[1, 2, 4, 7, 14, 28, 29, 47, 58, 94, 116, 188, 203, 329, 406, 571, 658, 812, 1142, 1316, 1363, 2284, 2726, 3997, 5452, 7994, 9541, 15988, 16559, 19082, 26837, 33118, 38164, 53674, 66236, 107348, 115913, 187859, 231826, 375718, 463652, 751436, 778273, 1556546, 3113092, 5447911, 10895822, 21791644]

約数ペア:

[(1, 21791644), (2, 10895822), (4, 5447911), (7, 3113092), (14, 1556546), (28, 778273), (29, 751436), (47, 463652), (58, 375718), (94, 231826), (116, 187859), (188, 115913), (203, 107348), (329, 66236), (406, 53674), (571, 38164), (658, 33118), (812, 26837), (1142, 19082), (1316, 16559), (1363, 15988), (2284, 9541), (2726, 7994), (3997, 5452)]