219170876

素因数分解:

$2^2\times {\mathrm{821}}^1\times {\mathrm{66739}}^1$

素因数の和:67564

約数の個数: 12

約数和(自身を含む): 384021960

約数和(自身を除く): 164851084

約数列:

[1, 2, 4, 821, 1642, 3284, 66739, 133478, 266956, 54792719, 109585438, 219170876]

約数ペア:

[(1, 219170876), (2, 109585438), (4, 54792719), (821, 266956), (1642, 133478), (3284, 66739)]