2017802801

素因数分解:

$7^4\times {\mathrm{643}}^1\times {\mathrm{1307}}^1$

素因数の和:1978

約数の個数: 20

約数和(自身を含む): 2359427952

約数和(自身を除く): 341625151

約数列:

[1, 7, 49, 343, 643, 1307, 2401, 4501, 9149, 31507, 64043, 220549, 448301, 840401, 1543843, 3138107, 5882807, 41179649, 288257543, 2017802801]

約数ペア:

[(1, 2017802801), (7, 288257543), (49, 41179649), (343, 5882807), (643, 3138107), (1307, 1543843), (2401, 840401), (4501, 448301), (9149, 220549), (31507, 64043)]