2639943

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{79}}^2$

素因数の和:211

約数の個数: 18

約数和(自身を含む): 3944304

約数和(自身を除く): 1304361

約数列:

[1, 3, 9, 47, 79, 141, 237, 423, 711, 3713, 6241, 11139, 18723, 33417, 56169, 293327, 879981, 2639943]

約数ペア:

[(1, 2639943), (3, 879981), (9, 293327), (47, 56169), (79, 33417), (141, 18723), (237, 11139), (423, 6241), (711, 3713)]