1390473483

素因数分解:

$3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{421739}}^1$

素因数の和:421906

約数の個数: 16

約数和(自身を含む): 2132317440

約数和(自身を除く): 741843957

約数列:

[1, 3, 7, 21, 157, 471, 1099, 3297, 421739, 1265217, 2952173, 8856519, 66213023, 198639069, 463491161, 1390473483]

約数ペア:

[(1, 1390473483), (3, 463491161), (7, 198639069), (21, 66213023), (157, 8856519), (471, 2952173), (1099, 1265217), (3297, 421739)]