15721956

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{6151}}^1$

素因数の和:6232

約数の個数: 36

約数和(自身を含む): 40307904

約数和(自身を除く): 24585948

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 6151, 12302, 18453, 24604, 36906, 55359, 73812, 110718, 221436, 436721, 873442, 1310163, 1746884, 2620326, 3930489, 5240652, 7860978, 15721956]

約数ペア:

[(1, 15721956), (2, 7860978), (3, 5240652), (4, 3930489), (6, 2620326), (9, 1746884), (12, 1310163), (18, 873442), (36, 436721), (71, 221436), (142, 110718), (213, 73812), (284, 55359), (426, 36906), (639, 24604), (852, 18453), (1278, 12302), (2556, 6151)]