21974992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105649}}^1$

素因数の和:105670

約数の個数: 20

約数和(自身を含む): 45852100

約数和(自身を除く): 23877108

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105649, 211298, 422596, 845192, 1373437, 1690384, 2746874, 5493748, 10987496, 21974992]

約数ペア:

[(1, 21974992), (2, 10987496), (4, 5493748), (8, 2746874), (13, 1690384), (16, 1373437), (26, 845192), (52, 422596), (104, 211298), (208, 105649)]