21597805

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1723}}^1$

素因数の和:1860

約数の個数: 16

約数和(自身を含む): 27308160

約数和(自身を除く): 5710355

約数列:

[1, 5, 23, 109, 115, 545, 1723, 2507, 8615, 12535, 39629, 187807, 198145, 939035, 4319561, 21597805]

約数ペア:

[(1, 21597805), (5, 4319561), (23, 939035), (109, 198145), (115, 187807), (545, 39629), (1723, 12535), (2507, 8615)]