16809965

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 21762720

約数和(自身を除く): 4952755

約数列:

[1, 5, 19, 67, 95, 139, 335, 361, 695, 1273, 1805, 2641, 6365, 9313, 13205, 24187, 46565, 50179, 120935, 176947, 250895, 884735, 3361993, 16809965]

約数ペア:

[(1, 16809965), (5, 3361993), (19, 884735), (67, 250895), (95, 176947), (139, 120935), (335, 50179), (361, 46565), (695, 24187), (1273, 13205), (1805, 9313), (2641, 6365)]