2021344521

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{371639}}^1$

素因数の和:371693

約数の個数: 24

約数和(自身を含む): 3219888960

約数和(自身を除く): 1198544439

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5439, 371639, 1114917, 2601473, 7804419, 13750643, 18210311, 41251929, 54630933, 96254501, 288763503, 673781507, 2021344521]

約数ペア:

[(1, 2021344521), (3, 673781507), (7, 288763503), (21, 96254501), (37, 54630933), (49, 41251929), (111, 18210311), (147, 13750643), (259, 7804419), (777, 2601473), (1813, 1114917), (5439, 371639)]