20814904

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{21503}}^1$

素因数の和:21531

約数の個数: 24

約数和(自身を含む): 42900480

約数和(自身を除く): 22085576

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 21503, 43006, 86012, 172024, 236533, 473066, 946132, 1892264, 2601863, 5203726, 10407452, 20814904]

約数ペア:

[(1, 20814904), (2, 10407452), (4, 5203726), (8, 2601863), (11, 1892264), (22, 946132), (44, 473066), (88, 236533), (121, 172024), (242, 86012), (484, 43006), (968, 21503)]