981407

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:230

約数の個数: 16

約数和(自身を含む): 1213440

約数和(自身を除く): 232033

約数列:

[1, 7, 19, 47, 133, 157, 329, 893, 1099, 2983, 6251, 7379, 20881, 51653, 140201, 981407]

約数ペア:

[(1, 981407), (7, 140201), (19, 51653), (47, 20881), (133, 7379), (157, 6251), (329, 2983), (893, 1099)]