21243794

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{74279}}^1$

素因数の和:74305

約数の個数: 16

約数和(自身を含む): 37437120

約数和(自身を除く): 16193326

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 74279, 148558, 817069, 965627, 1634138, 1931254, 10621897, 21243794]

約数ペア:

[(1, 21243794), (2, 10621897), (11, 1931254), (13, 1634138), (22, 965627), (26, 817069), (143, 148558), (286, 74279)]