21095163

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{1009}}^1$

素因数の和:1139

約数の個数: 24

約数和(自身を含む): 32142240

約数和(自身を除く): 11047077

約数列:

[1, 3, 9, 23, 69, 101, 207, 303, 909, 1009, 2323, 3027, 6969, 9081, 20907, 23207, 69621, 101909, 208863, 305727, 917181, 2343907, 7031721, 21095163]

約数ペア:

[(1, 21095163), (3, 7031721), (9, 2343907), (23, 917181), (69, 305727), (101, 208863), (207, 101909), (303, 69621), (909, 23207), (1009, 20907), (2323, 9081), (3027, 6969)]