21891438

素因数分解:

$2^1\times 3^3\times {\mathrm{53}}^1\times {\mathrm{7649}}^1$

素因数の和:7713

約数の個数: 32

約数和(自身を含む): 49572000

約数和(自身を除く): 27680562

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 106, 159, 318, 477, 954, 1431, 2862, 7649, 15298, 22947, 45894, 68841, 137682, 206523, 405397, 413046, 810794, 1216191, 2432382, 3648573, 7297146, 10945719, 21891438]

約数ペア:

[(1, 21891438), (2, 10945719), (3, 7297146), (6, 3648573), (9, 2432382), (18, 1216191), (27, 810794), (53, 413046), (54, 405397), (106, 206523), (159, 137682), (318, 68841), (477, 45894), (954, 22947), (1431, 15298), (2862, 7649)]