856556781

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{120829}}^1$

素因数の和:120988

約数の個数: 16

約数和(自身を含む): 1217966400

約数和(自身を除く): 361409619

約数列:

[1, 3, 17, 51, 139, 417, 2363, 7089, 120829, 362487, 2054093, 6162279, 16795231, 50385693, 285518927, 856556781]

約数ペア:

[(1, 856556781), (3, 285518927), (17, 50385693), (51, 16795231), (139, 6162279), (417, 2054093), (2363, 362487), (7089, 120829)]