399745731

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{91079}}^1$

素因数の和:91119

約数の個数: 32

約数和(自身を含む): 699494400

約数和(自身を除く): 299748669

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 209, 231, 399, 627, 1463, 4389, 91079, 273237, 637553, 1001869, 1730501, 1912659, 3005607, 5191503, 7013083, 12113507, 19035511, 21039249, 36340521, 57106533, 133248577, 399745731]

約数ペア:

[(1, 399745731), (3, 133248577), (7, 57106533), (11, 36340521), (19, 21039249), (21, 19035511), (33, 12113507), (57, 7013083), (77, 5191503), (133, 3005607), (209, 1912659), (231, 1730501), (399, 1001869), (627, 637553), (1463, 273237), (4389, 91079)]