12111111

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{523}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 18310656

約数和(自身を除く): 6199545

約数列:

[1, 3, 9, 31, 83, 93, 249, 279, 523, 747, 1569, 2573, 4707, 7719, 16213, 23157, 43409, 48639, 130227, 145917, 390681, 1345679, 4037037, 12111111]

約数ペア:

[(1, 12111111), (3, 4037037), (9, 1345679), (31, 390681), (83, 145917), (93, 130227), (249, 48639), (279, 43409), (523, 23157), (747, 16213), (1569, 7719), (2573, 4707)]