81821327

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{919}}^1$

素因数の和:1035

約数の個数: 24

約数和(自身を含む): 100684800

約数和(自身を除く): 18863473

約数列:

[1, 7, 23, 49, 79, 161, 553, 919, 1127, 1817, 3871, 6433, 12719, 21137, 45031, 72601, 89033, 147959, 508207, 1035713, 1669823, 3557449, 11688761, 81821327]

約数ペア:

[(1, 81821327), (7, 11688761), (23, 3557449), (49, 1669823), (79, 1035713), (161, 508207), (553, 147959), (919, 89033), (1127, 72601), (1817, 45031), (3871, 21137), (6433, 12719)]