21112208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101501}}^1$

素因数の和:101522

約数の個数: 20

約数和(自身を含む): 44051868

約数和(自身を除く): 22939660

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101501, 203002, 406004, 812008, 1319513, 1624016, 2639026, 5278052, 10556104, 21112208]

約数ペア:

[(1, 21112208), (2, 10556104), (4, 5278052), (8, 2639026), (13, 1624016), (16, 1319513), (26, 812008), (52, 406004), (104, 203002), (208, 101501)]