21293435

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{8081}}^1$

素因数の和:8134

約数の個数: 16

約数和(自身を含む): 27931392

約数和(自身を除く): 6637957

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 8081, 40405, 137377, 250511, 686885, 1252555, 4258687, 21293435]

約数ペア:

[(1, 21293435), (5, 4258687), (17, 1252555), (31, 686885), (85, 250511), (155, 137377), (527, 40405), (2635, 8081)]