20007788557

素因数分解:

${\mathrm{19}}^2\times {\mathrm{89}}^2\times {\mathrm{6997}}^1$

素因数の和:7213

約数の個数: 18

約数和(自身を含む): 21359232618

約数和(自身を除く): 1351444061

約数列:

[1, 19, 89, 361, 1691, 6997, 7921, 32129, 132943, 150499, 622733, 2525917, 2859481, 11831927, 55423237, 224806613, 1053041503, 20007788557]

約数ペア:

[(1, 20007788557), (19, 1053041503), (89, 224806613), (361, 55423237), (1691, 11831927), (6997, 2859481), (7921, 2525917), (32129, 622733), (132943, 150499)]