21487160

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{3001}}^1$

素因数の和:3191

約数の個数: 32

約数和(自身を含む): 48632400

約数和(自身を除く): 27145240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3001, 3580, 6002, 7160, 12004, 15005, 24008, 30010, 60020, 120040, 537179, 1074358, 2148716, 2685895, 4297432, 5371790, 10743580, 21487160]

約数ペア:

[(1, 21487160), (2, 10743580), (4, 5371790), (5, 4297432), (8, 2685895), (10, 2148716), (20, 1074358), (40, 537179), (179, 120040), (358, 60020), (716, 30010), (895, 24008), (1432, 15005), (1790, 12004), (3001, 7160), (3580, 6002)]