21569704

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{207401}}^1$

素因数の和:207420

約数の個数: 16

約数和(自身を含む): 43554420

約数和(自身を除く): 21984716

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 207401, 414802, 829604, 1659208, 2696213, 5392426, 10784852, 21569704]

約数ペア:

[(1, 21569704), (2, 10784852), (4, 5392426), (8, 2696213), (13, 1659208), (26, 829604), (52, 414802), (104, 207401)]