20591636

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{367}}^1$

素因数の和:480

約数の個数: 36

約数和(自身を含む): 39598272

約数和(自身を除く): 19006636

約数列:

[1, 2, 4, 13, 26, 52, 83, 166, 169, 332, 338, 367, 676, 734, 1079, 1468, 2158, 4316, 4771, 9542, 14027, 19084, 28054, 30461, 56108, 60922, 62023, 121844, 124046, 248092, 395993, 791986, 1583972, 5147909, 10295818, 20591636]

約数ペア:

[(1, 20591636), (2, 10295818), (4, 5147909), (13, 1583972), (26, 791986), (52, 395993), (83, 248092), (166, 124046), (169, 121844), (332, 62023), (338, 60922), (367, 56108), (676, 30461), (734, 28054), (1079, 19084), (1468, 14027), (2158, 9542), (4316, 4771)]