17979689

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 23331840

約数和(自身を除く): 5352151

約数列:

[1, 7, 13, 41, 61, 79, 91, 287, 427, 533, 553, 793, 1027, 2501, 3239, 3731, 4819, 5551, 7189, 17507, 22673, 32513, 33733, 42107, 62647, 197579, 227591, 294749, 438529, 1383053, 2568527, 17979689]

約数ペア:

[(1, 17979689), (7, 2568527), (13, 1383053), (41, 438529), (61, 294749), (79, 227591), (91, 197579), (287, 62647), (427, 42107), (533, 33733), (553, 32513), (793, 22673), (1027, 17507), (2501, 7189), (3239, 5551), (3731, 4819)]