21585620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{154183}}^1$

素因数の和:154199

約数の個数: 24

約数和(自身を含む): 51805824

約数和(自身を除く): 30220204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 154183, 308366, 616732, 770915, 1079281, 1541830, 2158562, 3083660, 4317124, 5396405, 10792810, 21585620]

約数ペア:

[(1, 21585620), (2, 10792810), (4, 5396405), (5, 4317124), (7, 3083660), (10, 2158562), (14, 1541830), (20, 1079281), (28, 770915), (35, 616732), (70, 308366), (140, 154183)]