21513060

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39839}}^1$

素因数の和:39857

約数の個数: 48

約数和(自身を含む): 66931200

約数和(自身を除く): 45418140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39839, 79678, 119517, 159356, 199195, 239034, 358551, 398390, 478068, 597585, 717102, 796780, 1075653, 1195170, 1434204, 1792755, 2151306, 2390340, 3585510, 4302612, 5378265, 7171020, 10756530, 21513060]

約数ペア:

[(1, 21513060), (2, 10756530), (3, 7171020), (4, 5378265), (5, 4302612), (6, 3585510), (9, 2390340), (10, 2151306), (12, 1792755), (15, 1434204), (18, 1195170), (20, 1075653), (27, 796780), (30, 717102), (36, 597585), (45, 478068), (54, 398390), (60, 358551), (90, 239034), (108, 199195), (135, 159356), (180, 119517), (270, 79678), (540, 39839)]