20803893

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 30745344

約数和(自身を除く): 9941451

約数列:

[1, 3, 11, 33, 121, 223, 257, 363, 669, 771, 2453, 2827, 7359, 8481, 26983, 31097, 57311, 80949, 93291, 171933, 630421, 1891263, 6934631, 20803893]

約数ペア:

[(1, 20803893), (3, 6934631), (11, 1891263), (33, 630421), (121, 171933), (223, 93291), (257, 80949), (363, 57311), (669, 31097), (771, 26983), (2453, 8481), (2827, 7359)]