21218460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{353641}}^1$

素因数の和:353653

約数の個数: 24

約数和(自身を含む): 59411856

約数和(自身を除く): 38193396

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 353641, 707282, 1060923, 1414564, 1768205, 2121846, 3536410, 4243692, 5304615, 7072820, 10609230, 21218460]

約数ペア:

[(1, 21218460), (2, 10609230), (3, 7072820), (4, 5304615), (5, 4243692), (6, 3536410), (10, 2121846), (12, 1768205), (15, 1414564), (20, 1060923), (30, 707282), (60, 353641)]