21135260

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10463}}^1$

素因数の和:10573

約数の個数: 24

約数和(自身を含む): 44827776

約数和(自身を除く): 23692516

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 10463, 20926, 41852, 52315, 104630, 209260, 1056763, 2113526, 4227052, 5283815, 10567630, 21135260]

約数ペア:

[(1, 21135260), (2, 10567630), (4, 5283815), (5, 4227052), (10, 2113526), (20, 1056763), (101, 209260), (202, 104630), (404, 52315), (505, 41852), (1010, 20926), (2020, 10463)]