21000363966

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20468191}}^1$

素因数の和:20468221

約数の個数: 32

約数和(自身を含む): 49123660800

約数和(自身を除く): 28123296834

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 20468191, 40936382, 61404573, 122809146, 184213719, 368427438, 388895629, 552641157, 777791258, 1105282314, 1166686887, 2333373774, 3500060661, 7000121322, 10500181983, 21000363966]

約数ペア:

[(1, 21000363966), (2, 10500181983), (3, 7000121322), (6, 3500060661), (9, 2333373774), (18, 1166686887), (19, 1105282314), (27, 777791258), (38, 552641157), (54, 388895629), (57, 368427438), (114, 184213719), (171, 122809146), (342, 61404573), (513, 40936382), (1026, 20468191)]