21000209043

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{2853677}}^1$

素因数の和:2853914

約数の個数: 16

約数和(自身を含む): 30682745856

約数和(自身を除く): 9682536813

約数列:

[1, 3, 11, 33, 223, 669, 2453, 7359, 2853677, 8561031, 31390447, 94171341, 636369971, 1909109913, 7000069681, 21000209043]

約数ペア:

[(1, 21000209043), (3, 7000069681), (11, 1909109913), (33, 636369971), (223, 94171341), (669, 31390447), (2453, 8561031), (7359, 2853677)]