1815536187

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{251843}}^1$

素因数の和:251944

約数の個数: 20

約数和(自身を含む): 2742581160

約数和(自身を除く): 927044973

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 7209, 251843, 755529, 2266587, 6799761, 20399283, 22414027, 67242081, 201726243, 605178729, 1815536187]

約数ペア:

[(1, 1815536187), (3, 605178729), (9, 201726243), (27, 67242081), (81, 22414027), (89, 20399283), (267, 6799761), (801, 2266587), (2403, 755529), (7209, 251843)]