21840835

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{977}}^1$

素因数の和:1262

約数の個数: 16

約数和(自身を含む): 27884736

約数和(自身を除く): 6043901

約数列:

[1, 5, 17, 85, 263, 977, 1315, 4471, 4885, 16609, 22355, 83045, 256951, 1284755, 4368167, 21840835]

約数ペア:

[(1, 21840835), (5, 4368167), (17, 1284755), (85, 256951), (263, 83045), (977, 22355), (1315, 16609), (4471, 4885)]