20199751971

素因数分解:

$3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{331}}^1\times {\mathrm{25717}}^1$

素因数の和:26171

約数の個数: 32

約数和(自身を含む): 31147995648

約数和(自身を除く): 10948243677

約数列:

[1, 3, 7, 21, 113, 331, 339, 791, 993, 2317, 2373, 6951, 25717, 37403, 77151, 112209, 180019, 261821, 540057, 785463, 2906021, 8512327, 8718063, 20342147, 25536981, 59586289, 61026441, 178758867, 961892951, 2885678853, 6733250657, 20199751971]

約数ペア:

[(1, 20199751971), (3, 6733250657), (7, 2885678853), (21, 961892951), (113, 178758867), (331, 61026441), (339, 59586289), (791, 25536981), (993, 20342147), (2317, 8718063), (2373, 8512327), (6951, 2906021), (25717, 785463), (37403, 540057), (77151, 261821), (112209, 180019)]