161865717

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1\times {\mathrm{367}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 239382528

約数和(自身を除く): 77516811

約数列:

[1, 3, 13, 39, 43, 129, 263, 367, 559, 789, 1101, 1677, 3419, 4771, 10257, 11309, 14313, 15781, 33927, 47343, 96521, 147017, 205153, 289563, 441051, 615459, 1254773, 3764319, 4150403, 12451209, 53955239, 161865717]

約数ペア:

[(1, 161865717), (3, 53955239), (13, 12451209), (39, 4150403), (43, 3764319), (129, 1254773), (263, 615459), (367, 441051), (559, 289563), (789, 205153), (1101, 147017), (1677, 96521), (3419, 47343), (4771, 33927), (10257, 15781), (11309, 14313)]