21234455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{1657}}^1$

素因数の和:1906

約数の個数: 16

約数和(自身を含む): 27933984

約数和(自身を除く): 6699529

約数列:

[1, 5, 11, 55, 233, 1165, 1657, 2563, 8285, 12815, 18227, 91135, 386081, 1930405, 4246891, 21234455]

約数ペア:

[(1, 21234455), (5, 4246891), (11, 1930405), (55, 386081), (233, 91135), (1165, 18227), (1657, 12815), (2563, 8285)]