21005778

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{2039}}^1$

素因数の和:2162

約数の個数: 32

約数和(自身を含む): 44945280

約数和(自身を除く): 23939502

約数列:

[1, 2, 3, 6, 17, 34, 51, 101, 102, 202, 303, 606, 1717, 2039, 3434, 4078, 5151, 6117, 10302, 12234, 34663, 69326, 103989, 205939, 207978, 411878, 617817, 1235634, 3500963, 7001926, 10502889, 21005778]

約数ペア:

[(1, 21005778), (2, 10502889), (3, 7001926), (6, 3500963), (17, 1235634), (34, 617817), (51, 411878), (101, 207978), (102, 205939), (202, 103989), (303, 69326), (606, 34663), (1717, 12234), (2039, 10302), (3434, 6117), (4078, 5151)]