81307818

素因数分解:

$2^1\times 3^2\times {\mathrm{199}}^1\times {\mathrm{22699}}^1$

素因数の和:22906

約数の個数: 24

約数和(自身を含む): 177060000

約数和(自身を除く): 95752182

約数列:

[1, 2, 3, 6, 9, 18, 199, 398, 597, 1194, 1791, 3582, 22699, 45398, 68097, 136194, 204291, 408582, 4517101, 9034202, 13551303, 27102606, 40653909, 81307818]

約数ペア:

[(1, 81307818), (2, 40653909), (3, 27102606), (6, 13551303), (9, 9034202), (18, 4517101), (199, 408582), (398, 204291), (597, 136194), (1194, 68097), (1791, 45398), (3582, 22699)]