20199963105

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{433}}^1\times {\mathrm{21157}}^1$

素因数の和:21615

約数の個数: 72

約数和(自身を含む): 40825715112

約数和(自身を除く): 20625752007

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 433, 441, 735, 1299, 2165, 2205, 3031, 3897, 6495, 9093, 15155, 19485, 21157, 21217, 27279, 45465, 63471, 63651, 105785, 106085, 136395, 148099, 190413, 190953, 317355, 318255, 444297, 740495, 952065, 954765, 1036693, 1332891, 2221485, 3110079, 5183465, 6664455, 9160981, 9330237, 15550395, 27482943, 45804905, 46651185, 64126867, 82448829, 137414715, 192380601, 320634335, 412244145, 448888069, 577141803, 961903005, 1346664207, 2244440345, 2885709015, 4039992621, 6733321035, 20199963105]

約数ペア:

[(1, 20199963105), (3, 6733321035), (5, 4039992621), (7, 2885709015), (9, 2244440345), (15, 1346664207), (21, 961903005), (35, 577141803), (45, 448888069), (49, 412244145), (63, 320634335), (105, 192380601), (147, 137414715), (245, 82448829), (315, 64126867), (433, 46651185), (441, 45804905), (735, 27482943), (1299, 15550395), (2165, 9330237), (2205, 9160981), (3031, 6664455), (3897, 5183465), (6495, 3110079), (9093, 2221485), (15155, 1332891), (19485, 1036693), (21157, 954765), (21217, 952065), (27279, 740495), (45465, 444297), (63471, 318255), (63651, 317355), (105785, 190953), (106085, 190413), (136395, 148099)]