21031766973

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{827}}^1\times {\mathrm{17551}}^1$

素因数の和:18414

約数の個数: 48

約数和(自身を含む): 36274507776

約数和(自身を除く): 15242740803

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 827, 1449, 2481, 5789, 7443, 17367, 17551, 19021, 52101, 52653, 57063, 122857, 133147, 157959, 171189, 368571, 399441, 403673, 1105713, 1198323, 1211019, 2825711, 3633057, 8477133, 14514677, 25431399, 43544031, 101602739, 130632093, 304808217, 333837571, 914424651, 1001512713, 2336862997, 3004538139, 7010588991, 21031766973]

約数ペア:

[(1, 21031766973), (3, 7010588991), (7, 3004538139), (9, 2336862997), (21, 1001512713), (23, 914424651), (63, 333837571), (69, 304808217), (161, 130632093), (207, 101602739), (483, 43544031), (827, 25431399), (1449, 14514677), (2481, 8477133), (5789, 3633057), (7443, 2825711), (17367, 1211019), (17551, 1198323), (19021, 1105713), (52101, 403673), (52653, 399441), (57063, 368571), (122857, 171189), (133147, 157959)]