19368955

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{139}}^1$

素因数の和:235

約数の個数: 24

約数和(自身を含む): 25023600

約数和(自身を除く): 5654645

約数列:

[1, 5, 29, 31, 139, 145, 155, 695, 899, 961, 4031, 4309, 4495, 4805, 20155, 21545, 27869, 124961, 133579, 139345, 624805, 667895, 3873791, 19368955]

約数ペア:

[(1, 19368955), (5, 3873791), (29, 667895), (31, 624805), (139, 139345), (145, 133579), (155, 124961), (695, 27869), (899, 21545), (961, 20155), (4031, 4805), (4309, 4495)]