21065820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{351097}}^1$

素因数の和:351109

約数の個数: 24

約数和(自身を含む): 58984464

約数和(自身を除く): 37918644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 351097, 702194, 1053291, 1404388, 1755485, 2106582, 3510970, 4213164, 5266455, 7021940, 10532910, 21065820]

約数ペア:

[(1, 21065820), (2, 10532910), (3, 7021940), (4, 5266455), (5, 4213164), (6, 3510970), (10, 2106582), (12, 1755485), (15, 1404388), (20, 1053291), (30, 702194), (60, 351097)]