399693242

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{823}}^1\times {\mathrm{18679}}^1$

素因数の和:19517

約数の個数: 16

約数和(自身を含む): 646477440

約数和(自身を除く): 246784198

約数列:

[1, 2, 13, 26, 823, 1646, 10699, 18679, 21398, 37358, 242827, 485654, 15372817, 30745634, 199846621, 399693242]

約数ペア:

[(1, 399693242), (2, 199846621), (13, 30745634), (26, 15372817), (823, 485654), (1646, 242827), (10699, 37358), (18679, 21398)]