20947576

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10601}}^1$

素因数の和:10639

約数の個数: 32

約数和(自身を含む): 44528400

約数和(自身を除く): 23580824

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10601, 21202, 42404, 84808, 137813, 201419, 275626, 402838, 551252, 805676, 1102504, 1611352, 2618447, 5236894, 10473788, 20947576]

約数ペア:

[(1, 20947576), (2, 10473788), (4, 5236894), (8, 2618447), (13, 1611352), (19, 1102504), (26, 805676), (38, 551252), (52, 402838), (76, 275626), (104, 201419), (152, 137813), (247, 84808), (494, 42404), (988, 21202), (1976, 10601)]