19802757

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1279}}^1$

素因数の和:1692

約数の個数: 16

約数和(自身を含む): 28528640

約数和(自身を除く): 8725883

約数列:

[1, 3, 13, 39, 397, 1191, 1279, 3837, 5161, 15483, 16627, 49881, 507763, 1523289, 6600919, 19802757]

約数ペア:

[(1, 19802757), (3, 6600919), (13, 1523289), (39, 507763), (397, 49881), (1191, 16627), (1279, 15483), (3837, 5161)]