217831679

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1\times {\mathrm{1123}}^1$

素因数の和:1526

約数の個数: 16

約数和(自身を含む): 240949632

約数和(自身を除く): 23117953

約数列:

[1, 13, 43, 347, 559, 1123, 4511, 14599, 14921, 48289, 193973, 389681, 627757, 5065853, 16756283, 217831679]

約数ペア:

[(1, 217831679), (13, 16756283), (43, 5065853), (347, 627757), (559, 389681), (1123, 193973), (4511, 48289), (14599, 14921)]