1388143743

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3479057}}^1$

素因数の和:3479086

約数の個数: 16

約数和(自身を含む): 2226597120

約数和(自身を除く): 838453377

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 3479057, 10437171, 24353399, 66102083, 73060197, 198306249, 462714581, 1388143743]

約数ペア:

[(1, 1388143743), (3, 462714581), (7, 198306249), (19, 73060197), (21, 66102083), (57, 24353399), (133, 10437171), (399, 3479057)]