210988239

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{6571}}^1$

素因数の和:6731

約数の個数: 32

約数和(自身を含む): 353310720

約数和(自身を除く): 142322481

約数列:

[1, 3, 7, 11, 21, 33, 77, 139, 231, 417, 973, 1529, 2919, 4587, 6571, 10703, 19713, 32109, 45997, 72281, 137991, 216843, 505967, 913369, 1517901, 2740107, 6393583, 10047059, 19180749, 30141177, 70329413, 210988239]

約数ペア:

[(1, 210988239), (3, 70329413), (7, 30141177), (11, 19180749), (21, 10047059), (33, 6393583), (77, 2740107), (139, 1517901), (231, 913369), (417, 505967), (973, 216843), (1529, 137991), (2919, 72281), (4587, 45997), (6571, 32109), (10703, 19713)]