21686650

素因数分解:

$2^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{4211}}^1$

素因数の和:4326

約数の個数: 24

約数和(自身を含む): 40738464

約数和(自身を除く): 19051814

約数列:

[1, 2, 5, 10, 25, 50, 103, 206, 515, 1030, 2575, 4211, 5150, 8422, 21055, 42110, 105275, 210550, 433733, 867466, 2168665, 4337330, 10843325, 21686650]

約数ペア:

[(1, 21686650), (2, 10843325), (5, 4337330), (10, 2168665), (25, 867466), (50, 433733), (103, 210550), (206, 105275), (515, 42110), (1030, 21055), (2575, 8422), (4211, 5150)]