21391962

素因数分解:

$2^1\times 3^1\times {\mathrm{487}}^1\times {\mathrm{7321}}^1$

素因数の和:7813

約数の個数: 16

約数和(自身を含む): 42877632

約数和(自身を除く): 21485670

約数列:

[1, 2, 3, 6, 487, 974, 1461, 2922, 7321, 14642, 21963, 43926, 3565327, 7130654, 10695981, 21391962]

約数ペア:

[(1, 21391962), (2, 10695981), (3, 7130654), (6, 3565327), (487, 43926), (974, 21963), (1461, 14642), (2922, 7321)]