39728507

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 52746624

約数和(自身を除く): 13018117

約数列:

[1, 7, 13, 17, 61, 91, 119, 221, 421, 427, 793, 1037, 1547, 2947, 5473, 5551, 7157, 7259, 13481, 25681, 38311, 50099, 93041, 94367, 179767, 333853, 436577, 651287, 2336971, 3056039, 5675501, 39728507]

約数ペア:

[(1, 39728507), (7, 5675501), (13, 3056039), (17, 2336971), (61, 651287), (91, 436577), (119, 333853), (221, 179767), (421, 94367), (427, 93041), (793, 50099), (1037, 38311), (1547, 25681), (2947, 13481), (5473, 7259), (5551, 7157)]