20189976443

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{857}}^1\times {\mathrm{6997}}^1$

素因数の和:7911

約数の個数: 32

約数和(自身を含む): 25554232704

約数和(自身を除く): 5364256261

約数列:

[1, 7, 13, 37, 91, 259, 481, 857, 3367, 5999, 6997, 11141, 31709, 48979, 77987, 90961, 221963, 258889, 412217, 636727, 1812223, 2885519, 3365557, 5996429, 23558899, 41975003, 77953577, 221867873, 545675039, 1553075111, 2884282349, 20189976443]

約数ペア:

[(1, 20189976443), (7, 2884282349), (13, 1553075111), (37, 545675039), (91, 221867873), (259, 77953577), (481, 41975003), (857, 23558899), (3367, 5996429), (5999, 3365557), (6997, 2885519), (11141, 1812223), (31709, 636727), (48979, 412217), (77987, 258889), (90961, 221963)]