21971940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{366199}}^1$

素因数の和:366211

約数の個数: 24

約数和(自身を含む): 61521600

約数和(自身を除く): 39549660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 366199, 732398, 1098597, 1464796, 1830995, 2197194, 3661990, 4394388, 5492985, 7323980, 10985970, 21971940]

約数ペア:

[(1, 21971940), (2, 10985970), (3, 7323980), (4, 5492985), (5, 4394388), (6, 3661990), (10, 2197194), (12, 1830995), (15, 1464796), (20, 1098597), (30, 732398), (60, 366199)]