20807619678

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{510817}}^1$

素因数の和:510929

約数の個数: 48

約数和(自身を含む): 47175063936

約数和(自身を除く): 26367444258

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 73, 93, 146, 186, 219, 279, 438, 558, 657, 1314, 2263, 4526, 6789, 13578, 20367, 40734, 510817, 1021634, 1532451, 3064902, 4597353, 9194706, 15835327, 31670654, 37289641, 47505981, 74579282, 95011962, 111868923, 142517943, 223737846, 285035886, 335606769, 671213538, 1155978871, 2311957742, 3467936613, 6935873226, 10403809839, 20807619678]

約数ペア:

[(1, 20807619678), (2, 10403809839), (3, 6935873226), (6, 3467936613), (9, 2311957742), (18, 1155978871), (31, 671213538), (62, 335606769), (73, 285035886), (93, 223737846), (146, 142517943), (186, 111868923), (219, 95011962), (279, 74579282), (438, 47505981), (558, 37289641), (657, 31670654), (1314, 15835327), (2263, 9194706), (4526, 4597353), (6789, 3064902), (13578, 1532451), (20367, 1021634), (40734, 510817)]