19979876

素因数分解:

$2^2\times 7^1\times {\mathrm{317}}^1\times {\mathrm{2251}}^1$

素因数の和:2579

約数の個数: 24

約数和(自身を含む): 40103616

約数和(自身を除く): 20123740

約数列:

[1, 2, 4, 7, 14, 28, 317, 634, 1268, 2219, 2251, 4438, 4502, 8876, 9004, 15757, 31514, 63028, 713567, 1427134, 2854268, 4994969, 9989938, 19979876]

約数ペア:

[(1, 19979876), (2, 9989938), (4, 4994969), (7, 2854268), (14, 1427134), (28, 713567), (317, 63028), (634, 31514), (1268, 15757), (2219, 9004), (2251, 8876), (4438, 4502)]