19981179891

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3185267}}^1$

素因数の和:3185331

約数の個数: 24

約数和(自身を含む): 31304813904

約数和(自身を除く): 11323634013

約数列:

[1, 3, 9, 17, 41, 51, 123, 153, 369, 697, 2091, 6273, 3185267, 9555801, 28667403, 54149539, 130595947, 162448617, 391787841, 487345851, 1175363523, 2220131099, 6660393297, 19981179891]

約数ペア:

[(1, 19981179891), (3, 6660393297), (9, 2220131099), (17, 1175363523), (41, 487345851), (51, 391787841), (123, 162448617), (153, 130595947), (369, 54149539), (697, 28667403), (2091, 9555801), (6273, 3185267)]