25942761

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:443

約数の個数: 40

約数和(自身を含む): 42444864

約数和(自身を除く): 16502103

約数列:

[1, 3, 9, 13, 27, 39, 71, 81, 117, 213, 347, 351, 639, 923, 1041, 1053, 1917, 2769, 3123, 4511, 5751, 8307, 9369, 13533, 24637, 24921, 28107, 40599, 73911, 74763, 121797, 221733, 320281, 365391, 665199, 960843, 1995597, 2882529, 8647587, 25942761]

約数ペア:

[(1, 25942761), (3, 8647587), (9, 2882529), (13, 1995597), (27, 960843), (39, 665199), (71, 365391), (81, 320281), (117, 221733), (213, 121797), (347, 74763), (351, 73911), (639, 40599), (923, 28107), (1041, 24921), (1053, 24637), (1917, 13533), (2769, 9369), (3123, 8307), (4511, 5751)]