21331630

素因数分解:

$2^1\times 5^1\times {\mathrm{541}}^1\times {\mathrm{3943}}^1$

素因数の和:4491

約数の個数: 16

約数和(自身を含む): 38477664

約数和(自身を除く): 17146034

約数列:

[1, 2, 5, 10, 541, 1082, 2705, 3943, 5410, 7886, 19715, 39430, 2133163, 4266326, 10665815, 21331630]

約数ペア:

[(1, 21331630), (2, 10665815), (5, 4266326), (10, 2133163), (541, 39430), (1082, 19715), (2705, 7886), (3943, 5410)]