18721374

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{445747}}^1$

素因数の和:445759

約数の個数: 16

約数和(自身を含む): 42791808

約数和(自身を除く): 24070434

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 445747, 891494, 1337241, 2674482, 3120229, 6240458, 9360687, 18721374]

約数ペア:

[(1, 18721374), (2, 9360687), (3, 6240458), (6, 3120229), (7, 2674482), (14, 1337241), (21, 891494), (42, 445747)]