19651541

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12703}}^1$

素因数の和:12740

約数の個数: 16

約数和(自身を含む): 25611264

約数和(自身を除く): 5959723

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 12703, 88921, 165139, 215951, 1155973, 1511657, 2807363, 19651541]

約数ペア:

[(1, 19651541), (7, 2807363), (13, 1511657), (17, 1155973), (91, 215951), (119, 165139), (221, 88921), (1547, 12703)]