20420676

素因数分解:

$2^2\times 3^2\times {\mathrm{157}}^1\times {\mathrm{3613}}^1$

素因数の和:3780

約数の個数: 36

約数和(自身を含む): 51962092

約数和(自身を除く): 31541416

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 157, 314, 471, 628, 942, 1413, 1884, 2826, 3613, 5652, 7226, 10839, 14452, 21678, 32517, 43356, 65034, 130068, 567241, 1134482, 1701723, 2268964, 3403446, 5105169, 6806892, 10210338, 20420676]

約数ペア:

[(1, 20420676), (2, 10210338), (3, 6806892), (4, 5105169), (6, 3403446), (9, 2268964), (12, 1701723), (18, 1134482), (36, 567241), (157, 130068), (314, 65034), (471, 43356), (628, 32517), (942, 21678), (1413, 14452), (1884, 10839), (2826, 7226), (3613, 5652)]