9997221

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8269}}^1$

素因数の和:8316

約数の個数: 16

約数和(自身を含む): 14819840

約数和(自身を除く): 4822619

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 8269, 24807, 107497, 256339, 322491, 769017, 3332407, 9997221]

約数ペア:

[(1, 9997221), (3, 3332407), (13, 769017), (31, 322491), (39, 256339), (93, 107497), (403, 24807), (1209, 8269)]