21993835

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{6311}}^1$

素因数の和:6374

約数の個数: 16

約数和(自身を含む): 28631232

約数和(自身を除く): 6637397

約数列:

[1, 5, 17, 41, 85, 205, 697, 3485, 6311, 31555, 107287, 258751, 536435, 1293755, 4398767, 21993835]

約数ペア:

[(1, 21993835), (5, 4398767), (17, 1293755), (41, 536435), (85, 258751), (205, 107287), (697, 31555), (3485, 6311)]