199631481

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{701}}^1$

素因数の和:973

約数の個数: 32

約数和(自身を含む): 310542336

約数和(自身を除く): 110910855

約数列:

[1, 3, 7, 21, 71, 191, 213, 497, 573, 701, 1337, 1491, 2103, 4011, 4907, 13561, 14721, 40683, 49771, 94927, 133891, 149313, 284781, 348397, 401673, 937237, 1045191, 2811711, 9506261, 28518783, 66543827, 199631481]

約数ペア:

[(1, 199631481), (3, 66543827), (7, 28518783), (21, 9506261), (71, 2811711), (191, 1045191), (213, 937237), (497, 401673), (573, 348397), (701, 284781), (1337, 149313), (1491, 133891), (2103, 94927), (4011, 49771), (4907, 40683), (13561, 14721)]