18218950

素因数分解:

$2^1\times 5^2\times {\mathrm{364379}}^1$

素因数の和:364391

約数の個数: 12

約数和(自身を含む): 33887340

約数和(自身を除く): 15668390

約数列:

[1, 2, 5, 10, 25, 50, 364379, 728758, 1821895, 3643790, 9109475, 18218950]

約数ペア:

[(1, 18218950), (2, 9109475), (5, 3643790), (10, 1821895), (25, 728758), (50, 364379)]