1290960111

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3235489}}^1$

素因数の和:3235518

約数の個数: 16

約数和(自身を含む): 2070713600

約数和(自身を除く): 779753489

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 3235489, 9706467, 22648423, 61474291, 67945269, 184422873, 430320037, 1290960111]

約数ペア:

[(1, 1290960111), (3, 430320037), (7, 184422873), (19, 67945269), (21, 61474291), (57, 22648423), (133, 9706467), (399, 3235489)]