20325553

素因数分解:

${\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:312

約数の個数: 16

約数和(自身を含む): 21772800

約数和(自身を除く): 1447247

約数列:

[1, 31, 53, 89, 139, 1643, 2759, 4309, 4717, 7367, 12371, 146227, 228377, 383501, 655663, 20325553]

約数ペア:

[(1, 20325553), (31, 655663), (53, 383501), (89, 228377), (139, 146227), (1643, 12371), (2759, 7367), (4309, 4717)]