2155806721

素因数分解:

${\mathrm{23}}^2\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 2299334184

約数和(自身を除く): 143527463

約数列:

[1, 23, 101, 157, 257, 529, 2323, 3611, 5911, 15857, 25957, 40349, 53429, 83053, 135953, 364711, 597011, 928027, 4075249, 8388353, 13731253, 21344621, 93730727, 2155806721]

約数ペア:

[(1, 2155806721), (23, 93730727), (101, 21344621), (157, 13731253), (257, 8388353), (529, 4075249), (2323, 928027), (3611, 597011), (5911, 364711), (15857, 135953), (25957, 83053), (40349, 53429)]