20543508

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{577}}^1$

素因数の和:653

約数の個数: 72

約数和(自身を含む): 55543488

約数和(自身を除く): 34999980

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 43, 46, 69, 86, 92, 129, 138, 172, 207, 258, 276, 387, 414, 516, 577, 774, 828, 989, 1154, 1548, 1731, 1978, 2308, 2967, 3462, 3956, 5193, 5934, 6924, 8901, 10386, 11868, 13271, 17802, 20772, 24811, 26542, 35604, 39813, 49622, 53084, 74433, 79626, 99244, 119439, 148866, 159252, 223299, 238878, 297732, 446598, 477756, 570653, 893196, 1141306, 1711959, 2282612, 3423918, 5135877, 6847836, 10271754, 20543508]

約数ペア:

[(1, 20543508), (2, 10271754), (3, 6847836), (4, 5135877), (6, 3423918), (9, 2282612), (12, 1711959), (18, 1141306), (23, 893196), (36, 570653), (43, 477756), (46, 446598), (69, 297732), (86, 238878), (92, 223299), (129, 159252), (138, 148866), (172, 119439), (207, 99244), (258, 79626), (276, 74433), (387, 53084), (414, 49622), (516, 39813), (577, 35604), (774, 26542), (828, 24811), (989, 20772), (1154, 17802), (1548, 13271), (1731, 11868), (1978, 10386), (2308, 8901), (2967, 6924), (3462, 5934), (3956, 5193)]