20311109

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3659}}^1$

素因数の和:3740

約数の個数: 16

約数和(自身を含む): 25415040

約数和(自身を除く): 5103931

約数列:

[1, 7, 13, 61, 91, 427, 793, 3659, 5551, 25613, 47567, 223199, 332969, 1562393, 2901587, 20311109]

約数ペア:

[(1, 20311109), (7, 2901587), (13, 1562393), (61, 332969), (91, 223199), (427, 47567), (793, 25613), (3659, 5551)]