21164036

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{129049}}^1$

素因数の和:129094

約数の個数: 12

約数和(自身を含む): 37940700

約数和(自身を除く): 16776664

約数列:

[1, 2, 4, 41, 82, 164, 129049, 258098, 516196, 5291009, 10582018, 21164036]

約数ペア:

[(1, 21164036), (2, 10582018), (4, 5291009), (41, 516196), (82, 258098), (164, 129049)]