18198380

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2749}}^1$

素因数の和:3089

約数の個数: 24

約数和(自身を含む): 38346000

約数和(自身を除く): 20147620

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 2749, 3310, 5498, 6620, 10996, 13745, 27490, 54980, 909919, 1819838, 3639676, 4549595, 9099190, 18198380]

約数ペア:

[(1, 18198380), (2, 9099190), (4, 4549595), (5, 3639676), (10, 1819838), (20, 909919), (331, 54980), (662, 27490), (1324, 13745), (1655, 10996), (2749, 6620), (3310, 5498)]