21028740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7457}}^1$

素因数の和:7516

約数の個数: 48

約数和(自身を含む): 60141312

約数和(自身を除く): 39112572

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7457, 14914, 22371, 29828, 37285, 44742, 74570, 89484, 111855, 149140, 223710, 350479, 447420, 700958, 1051437, 1401916, 1752395, 2102874, 3504790, 4205748, 5257185, 7009580, 10514370, 21028740]

約数ペア:

[(1, 21028740), (2, 10514370), (3, 7009580), (4, 5257185), (5, 4205748), (6, 3504790), (10, 2102874), (12, 1752395), (15, 1401916), (20, 1051437), (30, 700958), (47, 447420), (60, 350479), (94, 223710), (141, 149140), (188, 111855), (235, 89484), (282, 74570), (470, 44742), (564, 37285), (705, 29828), (940, 22371), (1410, 14914), (2820, 7457)]