21594419

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{2621}}^1$

素因数の和:2746

約数の個数: 16

約数和(自身を含む): 27184896

約数和(自身を除く): 5590477

約数列:

[1, 7, 11, 77, 107, 749, 1177, 2621, 8239, 18347, 28831, 201817, 280447, 1963129, 3084917, 21594419]

約数ペア:

[(1, 21594419), (7, 3084917), (11, 1963129), (77, 280447), (107, 201817), (749, 28831), (1177, 18347), (2621, 8239)]