21495940

素因数分解:

$2^2\times 5^1\times {\mathrm{587}}^1\times {\mathrm{1831}}^1$

素因数の和:2427

約数の個数: 24

約数和(自身を含む): 45243072

約数和(自身を除く): 23747132

約数列:

[1, 2, 4, 5, 10, 20, 587, 1174, 1831, 2348, 2935, 3662, 5870, 7324, 9155, 11740, 18310, 36620, 1074797, 2149594, 4299188, 5373985, 10747970, 21495940]

約数ペア:

[(1, 21495940), (2, 10747970), (4, 5373985), (5, 4299188), (10, 2149594), (20, 1074797), (587, 36620), (1174, 18310), (1831, 11740), (2348, 9155), (2935, 7324), (3662, 5870)]