21268910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^2$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 42831936

約数和(自身を除く): 21563026

約数列:

[1, 2, 5, 10, 13, 26, 47, 59, 65, 94, 118, 130, 235, 295, 470, 590, 611, 767, 1222, 1534, 2773, 3055, 3481, 3835, 5546, 6110, 6962, 7670, 13865, 17405, 27730, 34810, 36049, 45253, 72098, 90506, 163607, 180245, 226265, 327214, 360490, 452530, 818035, 1636070, 2126891, 4253782, 10634455, 21268910]

約数ペア:

[(1, 21268910), (2, 10634455), (5, 4253782), (10, 2126891), (13, 1636070), (26, 818035), (47, 452530), (59, 360490), (65, 327214), (94, 226265), (118, 180245), (130, 163607), (235, 90506), (295, 72098), (470, 45253), (590, 36049), (611, 34810), (767, 27730), (1222, 17405), (1534, 13865), (2773, 7670), (3055, 6962), (3481, 6110), (3835, 5546)]