21384310

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3881}}^1$

素因数の和:3936

約数の個数: 32

約数和(自身を含む): 41925600

約数和(自身を除く): 20541290

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 290, 551, 1102, 2755, 3881, 5510, 7762, 19405, 38810, 73739, 112549, 147478, 225098, 368695, 562745, 737390, 1125490, 2138431, 4276862, 10692155, 21384310]

約数ペア:

[(1, 21384310), (2, 10692155), (5, 4276862), (10, 2138431), (19, 1125490), (29, 737390), (38, 562745), (58, 368695), (95, 225098), (145, 147478), (190, 112549), (290, 73739), (551, 38810), (1102, 19405), (2755, 7762), (3881, 5510)]