20198492847

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{12721}}^1$

素因数の和:13112

約数の個数: 48

約数和(自身を含む): 32285993376

約数和(自身を除く): 12087500529

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 331, 369, 533, 993, 1599, 2979, 4303, 4797, 12721, 12909, 13571, 38163, 38727, 40713, 114489, 122139, 165373, 176423, 496119, 521561, 529269, 1488357, 1564683, 1587807, 4210651, 4694049, 6780293, 12631953, 20340879, 37895859, 54738463, 61022637, 164215389, 172636691, 492646167, 517910073, 1553730219, 2244276983, 6732830949, 20198492847]

約数ペア:

[(1, 20198492847), (3, 6732830949), (9, 2244276983), (13, 1553730219), (39, 517910073), (41, 492646167), (117, 172636691), (123, 164215389), (331, 61022637), (369, 54738463), (533, 37895859), (993, 20340879), (1599, 12631953), (2979, 6780293), (4303, 4694049), (4797, 4210651), (12721, 1587807), (12909, 1564683), (13571, 1488357), (38163, 529269), (38727, 521561), (40713, 496119), (114489, 176423), (122139, 165373)]