255193617

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{91369}}^1$

素因数の和:91405

約数の個数: 24

約数和(自身を含む): 416647200

約数和(自身を除く): 161453583

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 91369, 274107, 639583, 1736011, 1918749, 4477081, 5208033, 12152077, 13431243, 36456231, 85064539, 255193617]

約数ペア:

[(1, 255193617), (3, 85064539), (7, 36456231), (19, 13431243), (21, 12152077), (49, 5208033), (57, 4477081), (133, 1918749), (147, 1736011), (399, 639583), (931, 274107), (2793, 91369)]