21051778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{23339}}^1$

素因数の和:23393

約数の個数: 16

約数和(自身を含む): 35290080

約数和(自身を除く): 14238302

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 23339, 46678, 256729, 513458, 956899, 1913798, 10525889, 21051778]

約数ペア:

[(1, 21051778), (2, 10525889), (11, 1913798), (22, 956899), (41, 513458), (82, 256729), (451, 46678), (902, 23339)]