18684505

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{28097}}^1$

素因数の和:28128

約数の個数: 16

約数和(自身を含む): 26974080

約数和(自身を除く): 8289575

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 28097, 140485, 196679, 533843, 983395, 2669215, 3736901, 18684505]

約数ペア:

[(1, 18684505), (5, 3736901), (7, 2669215), (19, 983395), (35, 533843), (95, 196679), (133, 140485), (665, 28097)]