21376539

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3049}}^1$

素因数の和:3115

約数の個数: 24

約数和(自身を含む): 33306000

約数和(自身を除く): 11929461

約数列:

[1, 3, 9, 19, 41, 57, 123, 171, 369, 779, 2337, 3049, 7011, 9147, 27441, 57931, 125009, 173793, 375027, 521379, 1125081, 2375171, 7125513, 21376539]

約数ペア:

[(1, 21376539), (3, 7125513), (9, 2375171), (19, 1125081), (41, 521379), (57, 375027), (123, 173793), (171, 125009), (369, 57931), (779, 27441), (2337, 9147), (3049, 7011)]