20397492

素因数分解:

$2^2\times 3^2\times {\mathrm{443}}^1\times {\mathrm{1279}}^1$

素因数の和:1732

約数の個数: 36

約数和(自身を含む): 51717120

約数和(自身を除く): 31319628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 443, 886, 1279, 1329, 1772, 2558, 2658, 3837, 3987, 5116, 5316, 7674, 7974, 11511, 15348, 15948, 23022, 46044, 566597, 1133194, 1699791, 2266388, 3399582, 5099373, 6799164, 10198746, 20397492]

約数ペア:

[(1, 20397492), (2, 10198746), (3, 6799164), (4, 5099373), (6, 3399582), (9, 2266388), (12, 1699791), (18, 1133194), (36, 566597), (443, 46044), (886, 23022), (1279, 15948), (1329, 15348), (1772, 11511), (2558, 7974), (2658, 7674), (3837, 5316), (3987, 5116)]