20717049

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 9926151

約数列:

[1, 3, 19, 29, 57, 83, 87, 151, 249, 453, 551, 1577, 1653, 2407, 2869, 4379, 4731, 7221, 8607, 12533, 13137, 37599, 45733, 83201, 137199, 238127, 249603, 363457, 714381, 1090371, 6905683, 20717049]

約数ペア:

[(1, 20717049), (3, 6905683), (19, 1090371), (29, 714381), (57, 363457), (83, 249603), (87, 238127), (151, 137199), (249, 83201), (453, 45733), (551, 37599), (1577, 13137), (1653, 12533), (2407, 8607), (2869, 7221), (4379, 4731)]