21901773

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^2\times {\mathrm{113}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 31332672

約数和(自身を除く): 9430899

約数列:

[1, 3, 23, 53, 69, 113, 159, 339, 1219, 2599, 2809, 3657, 5989, 7797, 8427, 17967, 64607, 137747, 193821, 317417, 413241, 952251, 7300591, 21901773]

約数ペア:

[(1, 21901773), (3, 7300591), (23, 952251), (53, 413241), (69, 317417), (113, 193821), (159, 137747), (339, 64607), (1219, 17967), (2599, 8427), (2809, 7797), (3657, 5989)]