20551958

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{77263}}^1$

素因数の和:77291

約数の個数: 16

約数和(自身を含む): 37086720

約数和(自身を除く): 16534762

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 77263, 154526, 540841, 1081682, 1467997, 2935994, 10275979, 20551958]

約数ペア:

[(1, 20551958), (2, 10275979), (7, 2935994), (14, 1467997), (19, 1081682), (38, 540841), (133, 154526), (266, 77263)]