21319902

素因数分解:

$2^1\times 3^3\times {\mathrm{394813}}^1$

素因数の和:394824

約数の個数: 16

約数和(自身を含む): 47377680

約数和(自身を除く): 26057778

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 394813, 789626, 1184439, 2368878, 3553317, 7106634, 10659951, 21319902]

約数ペア:

[(1, 21319902), (2, 10659951), (3, 7106634), (6, 3553317), (9, 2368878), (18, 1184439), (27, 789626), (54, 394813)]