19402187

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1$

素因数の和:339

約数の個数: 24

約数和(自身を含む): 23836032

約数和(自身を除く): 4433845

約数列:

[1, 7, 31, 49, 53, 217, 241, 371, 1519, 1643, 1687, 2597, 7471, 11501, 11809, 12773, 52297, 80507, 89411, 366079, 395963, 625877, 2771741, 19402187]

約数ペア:

[(1, 19402187), (7, 2771741), (31, 625877), (49, 395963), (53, 366079), (217, 89411), (241, 80507), (371, 52297), (1519, 12773), (1643, 11809), (1687, 11501), (2597, 7471)]