331389163

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 401891328

約数和(自身を除く): 70502165

約数列:

[1, 7, 31, 71, 137, 157, 217, 497, 959, 1099, 2201, 4247, 4867, 9727, 11147, 15407, 21509, 29729, 34069, 68089, 78029, 150563, 301537, 345557, 666779, 1527139, 2110759, 2418899, 4667453, 10689973, 47341309, 331389163]

約数ペア:

[(1, 331389163), (7, 47341309), (31, 10689973), (71, 4667453), (137, 2418899), (157, 2110759), (217, 1527139), (497, 666779), (959, 345557), (1099, 301537), (2201, 150563), (4247, 78029), (4867, 68089), (9727, 34069), (11147, 29729), (15407, 21509)]