21123476

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20873}}^1$

素因数の和:20911

約数の個数: 24

約数和(自身を含む): 42081984

約数和(自身を除く): 20958508

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20873, 41746, 83492, 229603, 459206, 480079, 918412, 960158, 1920316, 5280869, 10561738, 21123476]

約数ペア:

[(1, 21123476), (2, 10561738), (4, 5280869), (11, 1920316), (22, 960158), (23, 918412), (44, 480079), (46, 459206), (92, 229603), (253, 83492), (506, 41746), (1012, 20873)]