20467355

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4139}}^1$

素因数の和:4210

約数の個数: 16

約数和(自身を含む): 26231040

約数和(自身を除く): 5763685

約数列:

[1, 5, 23, 43, 115, 215, 989, 4139, 4945, 20695, 95197, 177977, 475985, 889885, 4093471, 20467355]

約数ペア:

[(1, 20467355), (5, 4093471), (23, 889885), (43, 475985), (115, 177977), (215, 95197), (989, 20695), (4139, 4945)]