20421210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{680707}}^1$

素因数の和:680717

約数の個数: 16

約数和(自身を含む): 49010976

約数和(自身を除く): 28589766

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 680707, 1361414, 2042121, 3403535, 4084242, 6807070, 10210605, 20421210]

約数ペア:

[(1, 20421210), (2, 10210605), (3, 6807070), (5, 4084242), (6, 3403535), (10, 2042121), (15, 1361414), (30, 680707)]