21614180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{154387}}^1$

素因数の和:154403

約数の個数: 24

約数和(自身を含む): 51874368

約数和(自身を除く): 30260188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 154387, 308774, 617548, 771935, 1080709, 1543870, 2161418, 3087740, 4322836, 5403545, 10807090, 21614180]

約数ペア:

[(1, 21614180), (2, 10807090), (4, 5403545), (5, 4322836), (7, 3087740), (10, 2161418), (14, 1543870), (20, 1080709), (28, 771935), (35, 617548), (70, 308774), (140, 154387)]