20447984

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21661}}^1$

素因数の和:21728

約数の個数: 20

約数和(自身を含む): 40291320

約数和(自身を除く): 19843336

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21661, 43322, 86644, 173288, 346576, 1277999, 2555998, 5111996, 10223992, 20447984]

約数ペア:

[(1, 20447984), (2, 10223992), (4, 5111996), (8, 2555998), (16, 1277999), (59, 346576), (118, 173288), (236, 86644), (472, 43322), (944, 21661)]