20513516

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{761}}^1$

素因数の和:1081

約数の個数: 24

約数和(自身を含む): 37636704

約数和(自身を除く): 17123188

約数列:

[1, 2, 4, 23, 46, 92, 293, 586, 761, 1172, 1522, 3044, 6739, 13478, 17503, 26956, 35006, 70012, 222973, 445946, 891892, 5128379, 10256758, 20513516]

約数ペア:

[(1, 20513516), (2, 10256758), (4, 5128379), (23, 891892), (46, 445946), (92, 222973), (293, 70012), (586, 35006), (761, 26956), (1172, 17503), (1522, 13478), (3044, 6739)]