21018734

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41539}}^1$

素因数の和:41575

約数の個数: 16

約数和(自身を含む): 35890560

約数和(自身を除く): 14871826

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 41539, 83078, 456929, 913858, 955397, 1910794, 10509367, 21018734]

約数ペア:

[(1, 21018734), (2, 10509367), (11, 1910794), (22, 955397), (23, 913858), (46, 456929), (253, 83078), (506, 41539)]