66783021788

素因数分解:

$2^2\times 7^2\times {\mathrm{340729703}}^1$

素因数の和:340729721

約数の個数: 18

約数和(自身を含む): 135951151896

約数和(自身を除く): 69168130108

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 340729703, 681459406, 1362918812, 2385107921, 4770215842, 9540431684, 16695755447, 33391510894, 66783021788]

約数ペア:

[(1, 66783021788), (2, 33391510894), (4, 16695755447), (7, 9540431684), (14, 4770215842), (28, 2385107921), (49, 1362918812), (98, 681459406), (196, 340729703)]