21794324

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{499}}^1$

素因数の和:743

約数の個数: 24

約数和(自身を含む): 39060000

約数和(自身を除く): 17265676

約数列:

[1, 2, 4, 61, 122, 179, 244, 358, 499, 716, 998, 1996, 10919, 21838, 30439, 43676, 60878, 89321, 121756, 178642, 357284, 5448581, 10897162, 21794324]

約数ペア:

[(1, 21794324), (2, 10897162), (4, 5448581), (61, 357284), (122, 178642), (179, 121756), (244, 89321), (358, 60878), (499, 43676), (716, 30439), (998, 21838), (1996, 10919)]