2783756781

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{1399}}^1\times {\mathrm{5669}}^1$

素因数の和:7090

約数の個数: 32

約数和(自身を含む): 4445280000

約数和(自身を除く): 1661523219

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 1399, 4197, 5669, 12591, 17007, 18187, 37773, 51021, 54561, 73697, 153063, 163683, 221091, 491049, 663273, 1989819, 7930931, 23792793, 71378379, 103102103, 214135137, 309306309, 927918927, 2783756781]

約数ペア:

[(1, 2783756781), (3, 927918927), (9, 309306309), (13, 214135137), (27, 103102103), (39, 71378379), (117, 23792793), (351, 7930931), (1399, 1989819), (4197, 663273), (5669, 491049), (12591, 221091), (17007, 163683), (18187, 153063), (37773, 73697), (51021, 54561)]