981617

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:117

約数の個数: 24

約数和(自身を含む): 1302336

約数和(自身を除く): 320719

約数列:

[1, 7, 13, 23, 49, 67, 91, 161, 299, 469, 637, 871, 1127, 1541, 2093, 3283, 6097, 10787, 14651, 20033, 42679, 75509, 140231, 981617]

約数ペア:

[(1, 981617), (7, 140231), (13, 75509), (23, 42679), (49, 20033), (67, 14651), (91, 10787), (161, 6097), (299, 3283), (469, 2093), (637, 1541), (871, 1127)]