2021000289

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{21391}}^1$

素因数の和:21821

約数の個数: 32

約数和(自身を含む): 3367956480

約数和(自身を除く): 1346956191

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 409, 1227, 2863, 4499, 8589, 13497, 21391, 31493, 64173, 94479, 149737, 235301, 449211, 705903, 1647107, 4941321, 8748919, 26246757, 61242433, 96238109, 183727299, 288714327, 673666763, 2021000289]

約数ペア:

[(1, 2021000289), (3, 673666763), (7, 288714327), (11, 183727299), (21, 96238109), (33, 61242433), (77, 26246757), (231, 8748919), (409, 4941321), (1227, 1647107), (2863, 705903), (4499, 449211), (8589, 235301), (13497, 149737), (21391, 94479), (31493, 64173)]