19856898

素因数分解:

$2^1\times 3^2\times {\mathrm{641}}^1\times {\mathrm{1721}}^1$

素因数の和:2370

約数の個数: 24

約数和(自身を含む): 43115436

約数和(自身を除く): 23258538

約数列:

[1, 2, 3, 6, 9, 18, 641, 1282, 1721, 1923, 3442, 3846, 5163, 5769, 10326, 11538, 15489, 30978, 1103161, 2206322, 3309483, 6618966, 9928449, 19856898]

約数ペア:

[(1, 19856898), (2, 9928449), (3, 6618966), (6, 3309483), (9, 2206322), (18, 1103161), (641, 30978), (1282, 15489), (1721, 11538), (1923, 10326), (3442, 5769), (3846, 5163)]