18689993

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2003}}^1$

素因数の和:2084

約数の個数: 16

約数和(自身を含む): 22573056

約数和(自身を除く): 3883063

約数列:

[1, 7, 31, 43, 217, 301, 1333, 2003, 9331, 14021, 62093, 86129, 434651, 602903, 2669999, 18689993]

約数ペア:

[(1, 18689993), (7, 2669999), (31, 602903), (43, 434651), (217, 86129), (301, 62093), (1333, 14021), (2003, 9331)]