20173823971

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{19489}}^1$

素因数の和:19739

約数の個数: 32

約数和(自身を含む): 24972147200

約数和(自身を除く): 4798323229

約数列:

[1, 7, 19, 43, 133, 181, 301, 817, 1267, 3439, 5719, 7783, 19489, 24073, 54481, 136423, 147877, 370291, 838027, 1035139, 2592037, 3527509, 5866189, 15922513, 24692563, 67022671, 111457591, 151682887, 469158697, 1061780209, 2881974853, 20173823971]

約数ペア:

[(1, 20173823971), (7, 2881974853), (19, 1061780209), (43, 469158697), (133, 151682887), (181, 111457591), (301, 67022671), (817, 24692563), (1267, 15922513), (3439, 5866189), (5719, 3527509), (7783, 2592037), (19489, 1035139), (24073, 838027), (54481, 370291), (136423, 147877)]