18490251

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{4603}}^1$

素因数の和:4722

約数の個数: 16

約数和(自身を含む): 26813696

約数和(自身を除く): 8323445

約数列:

[1, 3, 13, 39, 103, 309, 1339, 4017, 4603, 13809, 59839, 179517, 474109, 1422327, 6163417, 18490251]

約数ペア:

[(1, 18490251), (3, 6163417), (13, 1422327), (39, 474109), (103, 179517), (309, 59839), (1339, 13809), (4017, 4603)]