20731625131

素因数分解:

$7^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{71671}}^1$

素因数の和:71783

約数の個数: 24

約数和(自身を含む): 25051944192

約数和(自身を除く): 4320319061

約数列:

[1, 7, 31, 43, 217, 301, 961, 1333, 6727, 9331, 41323, 71671, 289261, 501697, 2221801, 3081853, 15552607, 21572971, 68875831, 95537443, 482130817, 668762101, 2961660733, 20731625131]

約数ペア:

[(1, 20731625131), (7, 2961660733), (31, 668762101), (43, 482130817), (217, 95537443), (301, 68875831), (961, 21572971), (1333, 15552607), (6727, 3081853), (9331, 2221801), (41323, 501697), (71671, 289261)]