138790617

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{487}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 217749504

約数和(自身を除く): 78958887

約数列:

[1, 3, 7, 21, 41, 123, 287, 331, 487, 861, 993, 1461, 2317, 3409, 6951, 10227, 13571, 19967, 40713, 59901, 94997, 139769, 161197, 284991, 419307, 483591, 1128379, 3385137, 6609077, 19827231, 46263539, 138790617]

約数ペア:

[(1, 138790617), (3, 46263539), (7, 19827231), (21, 6609077), (41, 3385137), (123, 1128379), (287, 483591), (331, 419307), (487, 284991), (861, 161197), (993, 139769), (1461, 94997), (2317, 59901), (3409, 40713), (6951, 19967), (10227, 13571)]