20905794

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12763}}^1$

素因数の和:12791

約数の個数: 48

約数和(自身を含む): 55753152

約数和(自身を除く): 34847358

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 12763, 25526, 38289, 76578, 89341, 114867, 165919, 178682, 229734, 268023, 331838, 497757, 536046, 804069, 995514, 1161433, 1493271, 1608138, 2322866, 2986542, 3484299, 6968598, 10452897, 20905794]

約数ペア:

[(1, 20905794), (2, 10452897), (3, 6968598), (6, 3484299), (7, 2986542), (9, 2322866), (13, 1608138), (14, 1493271), (18, 1161433), (21, 995514), (26, 804069), (39, 536046), (42, 497757), (63, 331838), (78, 268023), (91, 229734), (117, 178682), (126, 165919), (182, 114867), (234, 89341), (273, 76578), (546, 38289), (819, 25526), (1638, 12763)]