222721919

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{2339}}^1$

素因数の和:2630

約数の個数: 16

約数和(自身を含む): 259983360

約数和(自身を除く): 37261441

約数列:

[1, 7, 61, 223, 427, 1561, 2339, 13603, 16373, 95221, 142679, 521597, 998753, 3651179, 31817417, 222721919]

約数ペア:

[(1, 222721919), (7, 31817417), (61, 3651179), (223, 998753), (427, 521597), (1561, 142679), (2339, 95221), (13603, 16373)]