209280457857

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{1187}}^1\times {\mathrm{448627}}^1$

素因数の和:449948

約数の個数: 16

約数和(自身を含む): 281408193792

約数和(自身を除く): 72127735935

約数列:

[1, 3, 131, 393, 1187, 3561, 155497, 448627, 466491, 1345881, 58770137, 176310411, 532520249, 1597560747, 69760152619, 209280457857]

約数ペア:

[(1, 209280457857), (3, 69760152619), (131, 1597560747), (393, 532520249), (1187, 176310411), (3561, 58770137), (155497, 1345881), (448627, 466491)]