21540844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{1093}}^1$

素因数の和:1489

約数の個数: 24

約数和(自身を含む): 40740560

約数和(自身を除く): 19199716

約数列:

[1, 2, 4, 13, 26, 52, 379, 758, 1093, 1516, 2186, 4372, 4927, 9854, 14209, 19708, 28418, 56836, 414247, 828494, 1656988, 5385211, 10770422, 21540844]

約数ペア:

[(1, 21540844), (2, 10770422), (4, 5385211), (13, 1656988), (26, 828494), (52, 414247), (379, 56836), (758, 28418), (1093, 19708), (1516, 14209), (2186, 9854), (4372, 4927)]