21895952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105269}}^1$

素因数の和:105290

約数の個数: 20

約数和(自身を含む): 45687180

約数和(自身を除く): 23791228

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105269, 210538, 421076, 842152, 1368497, 1684304, 2736994, 5473988, 10947976, 21895952]

約数ペア:

[(1, 21895952), (2, 10947976), (4, 5473988), (8, 2736994), (13, 1684304), (16, 1368497), (26, 842152), (52, 421076), (104, 210538), (208, 105269)]