21140231

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{3011}}^1$

素因数の和:3094

約数の個数: 16

約数和(自身を含む): 26023680

約数和(自身を除く): 4883449

約数列:

[1, 7, 17, 59, 119, 413, 1003, 3011, 7021, 21077, 51187, 177649, 358309, 1243543, 3020033, 21140231]

約数ペア:

[(1, 21140231), (7, 3020033), (17, 1243543), (59, 358309), (119, 177649), (413, 51187), (1003, 21077), (3011, 7021)]