21973855

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1753}}^1$

素因数の和:1890

約数の個数: 16

約数和(自身を含む): 27783360

約数和(自身を除く): 5809505

約数列:

[1, 5, 23, 109, 115, 545, 1753, 2507, 8765, 12535, 40319, 191077, 201595, 955385, 4394771, 21973855]

約数ペア:

[(1, 21973855), (5, 4394771), (23, 955385), (109, 201595), (115, 191077), (545, 40319), (1753, 12535), (2507, 8765)]