21037059

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1213}}^1$

素因数の和:1307

約数の個数: 24

約数和(自身を含む): 31816512

約数和(自身を除く): 10779453

約数列:

[1, 3, 9, 41, 47, 123, 141, 369, 423, 1213, 1927, 3639, 5781, 10917, 17343, 49733, 57011, 149199, 171033, 447597, 513099, 2337451, 7012353, 21037059]

約数ペア:

[(1, 21037059), (3, 7012353), (9, 2337451), (41, 513099), (47, 447597), (123, 171033), (141, 149199), (369, 57011), (423, 49733), (1213, 17343), (1927, 10917), (3639, 5781)]