20517207

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{593}}^1\times {\mathrm{607}}^1$

素因数の和:1222

約数の個数: 16

約数和(自身を含む): 28892160

約数和(自身を除く): 8374953

約数列:

[1, 3, 19, 57, 593, 607, 1779, 1821, 11267, 11533, 33801, 34599, 359951, 1079853, 6839069, 20517207]

約数ペア:

[(1, 20517207), (3, 6839069), (19, 1079853), (57, 359951), (593, 34599), (607, 33801), (1779, 11533), (1821, 11267)]