20609368

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3739}}^1$

素因数の和:3811

約数の個数: 32

約数和(自身を含む): 42411600

約数和(自身を除く): 21802232

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3739, 5512, 7478, 14956, 29912, 48607, 97214, 194428, 198167, 388856, 396334, 792668, 1585336, 2576171, 5152342, 10304684, 20609368]

約数ペア:

[(1, 20609368), (2, 10304684), (4, 5152342), (8, 2576171), (13, 1585336), (26, 792668), (52, 396334), (53, 388856), (104, 198167), (106, 194428), (212, 97214), (424, 48607), (689, 29912), (1378, 14956), (2756, 7478), (3739, 5512)]