21284060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{152029}}^1$

素因数の和:152045

約数の個数: 24

約数和(自身を含む): 51082080

約数和(自身を除く): 29798020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 152029, 304058, 608116, 760145, 1064203, 1520290, 2128406, 3040580, 4256812, 5321015, 10642030, 21284060]

約数ペア:

[(1, 21284060), (2, 10642030), (4, 5321015), (5, 4256812), (7, 3040580), (10, 2128406), (14, 1520290), (20, 1064203), (28, 760145), (35, 608116), (70, 304058), (140, 152029)]