21083260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2039}}^1$

素因数の和:2106

約数の個数: 48

約数和(自身を含む): 49351680

約数和(自身を除く): 28268420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 2039, 2068, 2585, 4078, 5170, 8156, 10195, 10340, 20390, 22429, 40780, 44858, 89716, 95833, 112145, 191666, 224290, 383332, 448580, 479165, 958330, 1054163, 1916660, 2108326, 4216652, 5270815, 10541630, 21083260]

約数ペア:

[(1, 21083260), (2, 10541630), (4, 5270815), (5, 4216652), (10, 2108326), (11, 1916660), (20, 1054163), (22, 958330), (44, 479165), (47, 448580), (55, 383332), (94, 224290), (110, 191666), (188, 112145), (220, 95833), (235, 89716), (470, 44858), (517, 40780), (940, 22429), (1034, 20390), (2039, 10340), (2068, 10195), (2585, 8156), (4078, 5170)]