20199578581

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{839}}^1\times {\mathrm{11503}}^1$

素因数の和:12385

約数の個数: 32

約数和(自身を含む): 25975111680

約数和(自身を除く): 5775533099

約数列:

[1, 7, 13, 23, 91, 161, 299, 839, 2093, 5873, 10907, 11503, 19297, 76349, 80521, 135079, 149539, 250861, 264569, 1046773, 1756027, 1851983, 3439397, 9651017, 24075779, 67557119, 125463221, 221973391, 878242547, 1553813737, 2885654083, 20199578581]

約数ペア:

[(1, 20199578581), (7, 2885654083), (13, 1553813737), (23, 878242547), (91, 221973391), (161, 125463221), (299, 67557119), (839, 24075779), (2093, 9651017), (5873, 3439397), (10907, 1851983), (11503, 1756027), (19297, 1046773), (76349, 264569), (80521, 250861), (135079, 149539)]