21256122

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1217}}^1$

素因数の和:1334

約数の個数: 32

約数和(自身を含む): 44198784

約数和(自身を除く): 22942662

約数列:

[1, 2, 3, 6, 41, 71, 82, 123, 142, 213, 246, 426, 1217, 2434, 2911, 3651, 5822, 7302, 8733, 17466, 49897, 86407, 99794, 149691, 172814, 259221, 299382, 518442, 3542687, 7085374, 10628061, 21256122]

約数ペア:

[(1, 21256122), (2, 10628061), (3, 7085374), (6, 3542687), (41, 518442), (71, 299382), (82, 259221), (123, 172814), (142, 149691), (213, 99794), (246, 86407), (426, 49897), (1217, 17466), (2434, 8733), (2911, 7302), (3651, 5822)]