210008781

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1$

素因数の和:1015

約数の個数: 40

約数和(自身を含む): 326641920

約数和(自身を除く): 116633139

約数列:

[1, 3, 9, 27, 37, 79, 81, 111, 237, 333, 711, 887, 999, 2133, 2661, 2923, 2997, 6399, 7983, 8769, 23949, 26307, 32819, 70073, 71847, 78921, 98457, 210219, 236763, 295371, 630657, 886113, 1891971, 2592701, 2658339, 5675913, 7778103, 23334309, 70002927, 210008781]

約数ペア:

[(1, 210008781), (3, 70002927), (9, 23334309), (27, 7778103), (37, 5675913), (79, 2658339), (81, 2592701), (111, 1891971), (237, 886113), (333, 630657), (711, 295371), (887, 236763), (999, 210219), (2133, 98457), (2661, 78921), (2923, 71847), (2997, 70073), (6399, 32819), (7983, 26307), (8769, 23949)]