990717

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 1720320

約数和(自身を除く): 729603

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 191, 247, 273, 399, 573, 741, 1337, 1729, 2483, 3629, 4011, 5187, 7449, 10887, 17381, 25403, 47177, 52143, 76209, 141531, 330239, 990717]

約数ペア:

[(1, 990717), (3, 330239), (7, 141531), (13, 76209), (19, 52143), (21, 47177), (39, 25403), (57, 17381), (91, 10887), (133, 7449), (191, 5187), (247, 4011), (273, 3629), (399, 2483), (573, 1729), (741, 1337)]