20729610

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20939}}^1$

素因数の和:20963

約数の個数: 48

約数和(自身を含む): 58799520

約数和(自身を除く): 38069910

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20939, 41878, 62817, 104695, 125634, 188451, 209390, 230329, 314085, 376902, 460658, 628170, 690987, 942255, 1151645, 1381974, 1884510, 2072961, 2303290, 3454935, 4145922, 6909870, 10364805, 20729610]

約数ペア:

[(1, 20729610), (2, 10364805), (3, 6909870), (5, 4145922), (6, 3454935), (9, 2303290), (10, 2072961), (11, 1884510), (15, 1381974), (18, 1151645), (22, 942255), (30, 690987), (33, 628170), (45, 460658), (55, 376902), (66, 314085), (90, 230329), (99, 209390), (110, 188451), (165, 125634), (198, 104695), (330, 62817), (495, 41878), (990, 20939)]