20009763

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 29864016

約数和(自身を除く): 9854253

約数列:

[1, 3, 9, 41, 123, 211, 257, 369, 633, 771, 1899, 2313, 8651, 10537, 25953, 31611, 54227, 77859, 94833, 162681, 488043, 2223307, 6669921, 20009763]

約数ペア:

[(1, 20009763), (3, 6669921), (9, 2223307), (41, 488043), (123, 162681), (211, 94833), (257, 77859), (369, 54227), (633, 31611), (771, 25953), (1899, 10537), (2313, 8651)]