20815676979

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{64591}}^1$

素因数の和:64771

約数の個数: 32

約数和(自身を含む): 30136043520

約数和(自身を除く): 9320366541

約数列:

[1, 3, 17, 51, 71, 89, 213, 267, 1207, 1513, 3621, 4539, 6319, 18957, 64591, 107423, 193773, 322269, 1098047, 3294141, 4585961, 5748599, 13757883, 17245797, 77961337, 97726183, 233884011, 293178549, 408150529, 1224451587, 6938558993, 20815676979]

約数ペア:

[(1, 20815676979), (3, 6938558993), (17, 1224451587), (51, 408150529), (71, 293178549), (89, 233884011), (213, 97726183), (267, 77961337), (1207, 17245797), (1513, 13757883), (3621, 5748599), (4539, 4585961), (6319, 3294141), (18957, 1098047), (64591, 322269), (107423, 193773)]