21917660

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8629}}^1$

素因数の和:8765

約数の個数: 24

約数和(自身を含む): 46394880

約数和(自身を除く): 24477220

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 8629, 17258, 34516, 43145, 86290, 172580, 1095883, 2191766, 4383532, 5479415, 10958830, 21917660]

約数ペア:

[(1, 21917660), (2, 10958830), (4, 5479415), (5, 4383532), (10, 2191766), (20, 1095883), (127, 172580), (254, 86290), (508, 43145), (635, 34516), (1270, 17258), (2540, 8629)]