20670585

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1493}}^1$

素因数の和:1585

約数の個数: 32

約数和(自身を含む): 36142848

約数和(自身を除く): 15472263

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 195, 213, 355, 923, 1065, 1493, 2769, 4479, 4615, 7465, 13845, 19409, 22395, 58227, 97045, 106003, 291135, 318009, 530015, 1378039, 1590045, 4134117, 6890195, 20670585]

約数ペア:

[(1, 20670585), (3, 6890195), (5, 4134117), (13, 1590045), (15, 1378039), (39, 530015), (65, 318009), (71, 291135), (195, 106003), (213, 97045), (355, 58227), (923, 22395), (1065, 19409), (1493, 13845), (2769, 7465), (4479, 4615)]