20457778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{15761}}^1$

素因数の和:15833

約数の個数: 16

約数和(自身を含む): 34045920

約数和(自身を除く): 13588142

約数列:

[1, 2, 11, 22, 59, 118, 649, 1298, 15761, 31522, 173371, 346742, 929899, 1859798, 10228889, 20457778]

約数ペア:

[(1, 20457778), (2, 10228889), (11, 1859798), (22, 929899), (59, 346742), (118, 173371), (649, 31522), (1298, 15761)]