21730384

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104473}}^1$

素因数の和:104494

約数の個数: 20

約数和(自身を含む): 45341716

約数和(自身を除く): 23611332

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104473, 208946, 417892, 835784, 1358149, 1671568, 2716298, 5432596, 10865192, 21730384]

約数ペア:

[(1, 21730384), (2, 10865192), (4, 5432596), (8, 2716298), (13, 1671568), (16, 1358149), (26, 835784), (52, 417892), (104, 208946), (208, 104473)]