2181020

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{653}}^1$

素因数の和:829

約数の個数: 24

約数和(自身を含む): 4614624

約数和(自身を除く): 2433604

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 653, 668, 835, 1306, 1670, 2612, 3265, 3340, 6530, 13060, 109051, 218102, 436204, 545255, 1090510, 2181020]

約数ペア:

[(1, 2181020), (2, 1090510), (4, 545255), (5, 436204), (10, 218102), (20, 109051), (167, 13060), (334, 6530), (653, 3340), (668, 3265), (835, 2612), (1306, 1670)]