21809273759

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{941}}^1\times {\mathrm{5923}}^1$

素因数の和:6927

約数の個数: 32

約数和(自身を含む): 27500250624

約数和(自身を除く): 5690976865

約数列:

[1, 7, 13, 43, 91, 301, 559, 941, 3913, 5923, 6587, 12233, 40463, 41461, 76999, 85631, 254689, 283241, 526019, 538993, 1782823, 3310957, 3682133, 5573543, 23176699, 39014801, 72456059, 239662349, 507192413, 1677636443, 3115610537, 21809273759]

約数ペア:

[(1, 21809273759), (7, 3115610537), (13, 1677636443), (43, 507192413), (91, 239662349), (301, 72456059), (559, 39014801), (941, 23176699), (3913, 5573543), (5923, 3682133), (6587, 3310957), (12233, 1782823), (40463, 538993), (41461, 526019), (76999, 283241), (85631, 254689)]