396997979

素因数分解:

$7^1\times {\mathrm{181}}^1\times {\mathrm{431}}^1\times {\mathrm{727}}^1$

素因数の和:1346

約数の個数: 16

約数和(自身を含む): 457906176

約数和(自身を除く): 60908197

約数列:

[1, 7, 181, 431, 727, 1267, 3017, 5089, 78011, 131587, 313337, 546077, 921109, 2193359, 56713997, 396997979]

約数ペア:

[(1, 396997979), (7, 56713997), (181, 2193359), (431, 921109), (727, 546077), (1267, 313337), (3017, 131587), (5089, 78011)]