19880331

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{887}}^1$

素因数の和:1162

約数の個数: 16

約数和(自身を含む): 27506688

約数和(自身を除く): 7626357

約数列:

[1, 3, 31, 93, 241, 723, 887, 2661, 7471, 22413, 27497, 82491, 213767, 641301, 6626777, 19880331]

約数ペア:

[(1, 19880331), (3, 6626777), (31, 641301), (93, 213767), (241, 82491), (723, 27497), (887, 22413), (2661, 7471)]