208405547

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{3947}}^1$

素因数の和:4370

約数の個数: 16

約数和(自身を含む): 251408640

約数和(自身を除く): 43003093

約数列:

[1, 7, 19, 133, 397, 2779, 3947, 7543, 27629, 52801, 74993, 524951, 1566959, 10968713, 29772221, 208405547]

約数ペア:

[(1, 208405547), (7, 29772221), (19, 10968713), (133, 1566959), (397, 524951), (2779, 74993), (3947, 52801), (7543, 27629)]