19935454

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{18493}}^1$

素因数の和:18520

約数の個数: 24

約数和(自身を含む): 37949688

約数和(自身を除く): 18014234

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 18493, 36986, 129451, 203423, 258902, 406846, 906157, 1423961, 1812314, 2847922, 9967727, 19935454]

約数ペア:

[(1, 19935454), (2, 9967727), (7, 2847922), (11, 1812314), (14, 1423961), (22, 906157), (49, 406846), (77, 258902), (98, 203423), (154, 129451), (539, 36986), (1078, 18493)]