18763893

素因数分解:

$3^4\times {\mathrm{83}}^1\times {\mathrm{2791}}^1$

素因数の和:2886

約数の個数: 20

約数和(自身を含む): 28377888

約数和(自身を除く): 9613995

約数列:

[1, 3, 9, 27, 81, 83, 249, 747, 2241, 2791, 6723, 8373, 25119, 75357, 226071, 231653, 694959, 2084877, 6254631, 18763893]

約数ペア:

[(1, 18763893), (3, 6254631), (9, 2084877), (27, 694959), (81, 231653), (83, 226071), (249, 75357), (747, 25119), (2241, 8373), (2791, 6723)]