21112936

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2281}}^1$

素因数の和:2389

約数の個数: 32

約数和(自身を含む): 43129800

約数和(自身を除く): 22016864

約数列:

[1, 2, 4, 8, 13, 26, 52, 89, 104, 178, 356, 712, 1157, 2281, 2314, 4562, 4628, 9124, 9256, 18248, 29653, 59306, 118612, 203009, 237224, 406018, 812036, 1624072, 2639117, 5278234, 10556468, 21112936]

約数ペア:

[(1, 21112936), (2, 10556468), (4, 5278234), (8, 2639117), (13, 1624072), (26, 812036), (52, 406018), (89, 237224), (104, 203009), (178, 118612), (356, 59306), (712, 29653), (1157, 18248), (2281, 9256), (2314, 9124), (4562, 4628)]