25870209

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{6421}}^1$

素因数の和:6520

約数の個数: 16

約数和(自身を含む): 36990720

約数和(自身を除く): 11120511

約数列:

[1, 3, 17, 51, 79, 237, 1343, 4029, 6421, 19263, 109157, 327471, 507259, 1521777, 8623403, 25870209]

約数ペア:

[(1, 25870209), (3, 8623403), (17, 1521777), (51, 507259), (79, 327471), (237, 109157), (1343, 19263), (4029, 6421)]