9989421

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 16338240

約数和(自身を除く): 6348819

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 61, 169, 183, 221, 247, 323, 507, 663, 741, 793, 969, 1037, 1159, 2379, 2873, 3111, 3211, 3477, 4199, 8619, 9633, 10309, 12597, 13481, 15067, 19703, 30927, 40443, 45201, 54587, 59109, 163761, 175253, 195871, 256139, 525759, 587613, 768417, 3329807, 9989421]

約数ペア:

[(1, 9989421), (3, 3329807), (13, 768417), (17, 587613), (19, 525759), (39, 256139), (51, 195871), (57, 175253), (61, 163761), (169, 59109), (183, 54587), (221, 45201), (247, 40443), (323, 30927), (507, 19703), (663, 15067), (741, 13481), (793, 12597), (969, 10309), (1037, 9633), (1159, 8619), (2379, 4199), (2873, 3477), (3111, 3211)]