21393160

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4733}}^1$

素因数の和:4857

約数の個数: 32

約数和(自身を含む): 48570840

約数和(自身を除く): 27177680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 4733, 9466, 18932, 23665, 37864, 47330, 94660, 189320, 534829, 1069658, 2139316, 2674145, 4278632, 5348290, 10696580, 21393160]

約数ペア:

[(1, 21393160), (2, 10696580), (4, 5348290), (5, 4278632), (8, 2674145), (10, 2139316), (20, 1069658), (40, 534829), (113, 189320), (226, 94660), (452, 47330), (565, 37864), (904, 23665), (1130, 18932), (2260, 9466), (4520, 4733)]