21000994578

素因数分解:

$2^1\times 3^5\times {\mathrm{31}}^1\times {\mathrm{1393933}}^1$

素因数の和:1393981

約数の個数: 48

約数和(自身を含む): 48709629696

約数和(自身を除く): 27708635118

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 81, 93, 162, 186, 243, 279, 486, 558, 837, 1674, 2511, 5022, 7533, 15066, 1393933, 2787866, 4181799, 8363598, 12545397, 25090794, 37636191, 43211923, 75272382, 86423846, 112908573, 129635769, 225817146, 259271538, 338725719, 388907307, 677451438, 777814614, 1166721921, 2333443842, 3500165763, 7000331526, 10500497289, 21000994578]

約数ペア:

[(1, 21000994578), (2, 10500497289), (3, 7000331526), (6, 3500165763), (9, 2333443842), (18, 1166721921), (27, 777814614), (31, 677451438), (54, 388907307), (62, 338725719), (81, 259271538), (93, 225817146), (162, 129635769), (186, 112908573), (243, 86423846), (279, 75272382), (486, 43211923), (558, 37636191), (837, 25090794), (1674, 12545397), (2511, 8363598), (5022, 4181799), (7533, 2787866), (15066, 1393933)]