31281789

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{709}}^1$

素因数の和:921

約数の個数: 32

約数和(自身を含む): 52346880

約数和(自身を除く): 21065091

約数列:

[1, 3, 7, 11, 21, 33, 77, 191, 231, 573, 709, 1337, 2101, 2127, 4011, 4963, 6303, 7799, 14707, 14889, 23397, 44121, 54593, 135419, 163779, 406257, 947933, 1489609, 2843799, 4468827, 10427263, 31281789]

約数ペア:

[(1, 31281789), (3, 10427263), (7, 4468827), (11, 2843799), (21, 1489609), (33, 947933), (77, 406257), (191, 163779), (231, 135419), (573, 54593), (709, 44121), (1337, 23397), (2101, 14889), (2127, 14707), (4011, 7799), (4963, 6303)]