21167972404

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{661}}^1\times {\mathrm{186187}}^1$

素因数の和:186895

約数の個数: 24

約数和(自身を含む): 37962988448

約数和(自身を除く): 16795016044

約数列:

[1, 2, 4, 43, 86, 172, 661, 1322, 2644, 28423, 56846, 113692, 186187, 372374, 744748, 8006041, 16012082, 32024164, 123069607, 246139214, 492278428, 5291993101, 10583986202, 21167972404]

約数ペア:

[(1, 21167972404), (2, 10583986202), (4, 5291993101), (43, 492278428), (86, 246139214), (172, 123069607), (661, 32024164), (1322, 16012082), (2644, 8006041), (28423, 744748), (56846, 372374), (113692, 186187)]