20123717999

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{266953}}^1$

素因数の和:267071

約数の個数: 24

約数和(自身を含む): 25563515040

約数和(自身を除く): 5439797041

約数列:

[1, 7, 11, 77, 89, 121, 623, 847, 979, 6853, 10769, 75383, 266953, 1868671, 2936483, 20555381, 23758817, 32301313, 166311719, 226109191, 261346987, 1829428909, 2874816857, 20123717999]

約数ペア:

[(1, 20123717999), (7, 2874816857), (11, 1829428909), (77, 261346987), (89, 226109191), (121, 166311719), (623, 32301313), (847, 23758817), (979, 20555381), (6853, 2936483), (10769, 1868671), (75383, 266953)]