20644728

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{66169}}^1$

素因数の和:66191

約数の個数: 32

約数和(自身を含む): 55582800

約数和(自身を除く): 34938072

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 66169, 132338, 198507, 264676, 397014, 529352, 794028, 860197, 1588056, 1720394, 2580591, 3440788, 5161182, 6881576, 10322364, 20644728]

約数ペア:

[(1, 20644728), (2, 10322364), (3, 6881576), (4, 5161182), (6, 3440788), (8, 2580591), (12, 1720394), (13, 1588056), (24, 860197), (26, 794028), (39, 529352), (52, 397014), (78, 264676), (104, 198507), (156, 132338), (312, 66169)]