20512781289

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2276921}}^1$

素因数の和:2276958

約数の個数: 48

約数和(自身を含む): 39782381184

約数和(自身を除く): 19269599895

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 273, 429, 693, 819, 1001, 1287, 3003, 9009, 2276921, 6830763, 15938447, 20492289, 25046131, 29599973, 47815341, 75138393, 88799919, 143446023, 175322917, 207199811, 225415179, 266399757, 325599703, 525968751, 621599433, 976799109, 1577906253, 1864798299, 2279197921, 2930397327, 6837593763, 20512781289]

約数ペア:

[(1, 20512781289), (3, 6837593763), (7, 2930397327), (9, 2279197921), (11, 1864798299), (13, 1577906253), (21, 976799109), (33, 621599433), (39, 525968751), (63, 325599703), (77, 266399757), (91, 225415179), (99, 207199811), (117, 175322917), (143, 143446023), (231, 88799919), (273, 75138393), (429, 47815341), (693, 29599973), (819, 25046131), (1001, 20492289), (1287, 15938447), (3003, 6830763), (9009, 2276921)]