18739966

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70451}}^1$

素因数の和:70479

約数の個数: 16

約数和(自身を含む): 33816960

約数和(自身を除く): 15076994

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 70451, 140902, 493157, 986314, 1338569, 2677138, 9369983, 18739966]

約数ペア:

[(1, 18739966), (2, 9369983), (7, 2677138), (14, 1338569), (19, 986314), (38, 493157), (133, 140902), (266, 70451)]