18972590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20849}}^1$

素因数の和:20876

約数の個数: 32

約数和(自身を含む): 42033600

約数和(自身を除く): 23061010

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 20849, 41698, 104245, 145943, 208490, 271037, 291886, 542074, 729715, 1355185, 1459430, 1897259, 2710370, 3794518, 9486295, 18972590]

約数ペア:

[(1, 18972590), (2, 9486295), (5, 3794518), (7, 2710370), (10, 1897259), (13, 1459430), (14, 1355185), (26, 729715), (35, 542074), (65, 291886), (70, 271037), (91, 208490), (130, 145943), (182, 104245), (455, 41698), (910, 20849)]