217805388

素因数分解:

$2^2\times 3^1\times {\mathrm{18150449}}^1$

素因数の和:18150456

約数の個数: 12

約数和(自身を含む): 508212600

約数和(自身を除く): 290407212

約数列:

[1, 2, 3, 4, 6, 12, 18150449, 36300898, 54451347, 72601796, 108902694, 217805388]

約数ペア:

[(1, 217805388), (2, 108902694), (3, 72601796), (4, 54451347), (6, 36300898), (12, 18150449)]