21678965

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{5119}}^1$

素因数の和:5153

約数の個数: 24

約数和(自身を含む): 32686080

約数和(自身を除く): 11007115

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 5119, 25595, 35833, 56309, 179165, 281545, 394163, 619399, 1970815, 3096995, 4335793, 21678965]

約数ペア:

[(1, 21678965), (5, 4335793), (7, 3096995), (11, 1970815), (35, 619399), (55, 394163), (77, 281545), (121, 179165), (385, 56309), (605, 35833), (847, 25595), (4235, 5119)]