21791940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{363199}}^1$

素因数の和:363211

約数の個数: 24

約数和(自身を含む): 61017600

約数和(自身を除く): 39225660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 363199, 726398, 1089597, 1452796, 1815995, 2179194, 3631990, 4358388, 5447985, 7263980, 10895970, 21791940]

約数ペア:

[(1, 21791940), (2, 10895970), (3, 7263980), (4, 5447985), (5, 4358388), (6, 3631990), (10, 2179194), (12, 1815995), (15, 1452796), (20, 1089597), (30, 726398), (60, 363199)]