216933290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{442721}}^1$

素因数の和:442742

約数の個数: 24

約数和(自身を含む): 454232772

約数和(自身を除く): 237299482

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 442721, 885442, 2213605, 3099047, 4427210, 6198094, 15495235, 21693329, 30990470, 43386658, 108466645, 216933290]

約数ペア:

[(1, 216933290), (2, 108466645), (5, 43386658), (7, 30990470), (10, 21693329), (14, 15495235), (35, 6198094), (49, 4427210), (70, 3099047), (98, 2213605), (245, 885442), (490, 442721)]