20447817

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1301}}^1$

素因数の和:1361

約数の個数: 24

約数和(自身を含む): 30498048

約数和(自身を除く): 10050231

約数列:

[1, 3, 13, 31, 39, 93, 169, 403, 507, 1209, 1301, 3903, 5239, 15717, 16913, 40331, 50739, 120993, 219869, 524303, 659607, 1572909, 6815939, 20447817]

約数ペア:

[(1, 20447817), (3, 6815939), (13, 1572909), (31, 659607), (39, 524303), (93, 219869), (169, 120993), (403, 50739), (507, 40331), (1209, 16913), (1301, 15717), (3903, 5239)]