21354990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6911}}^1$

素因数の和:7024

約数の個数: 32

約数和(自身を含む): 51757056

約数和(自身を除く): 30402066

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 103, 206, 309, 515, 618, 1030, 1545, 3090, 6911, 13822, 20733, 34555, 41466, 69110, 103665, 207330, 711833, 1423666, 2135499, 3559165, 4270998, 7118330, 10677495, 21354990]

約数ペア:

[(1, 21354990), (2, 10677495), (3, 7118330), (5, 4270998), (6, 3559165), (10, 2135499), (15, 1423666), (30, 711833), (103, 207330), (206, 103665), (309, 69110), (515, 41466), (618, 34555), (1030, 20733), (1545, 13822), (3090, 6911)]