18252255

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1307}}^1$

素因数の和:1348

約数の個数: 48

約数和(自身を含む): 35786880

約数和(自身を除く): 17534625

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1307, 1995, 2793, 3921, 4655, 6535, 9149, 13965, 19605, 24833, 27447, 45745, 64043, 74499, 124165, 137235, 173831, 192129, 320215, 372495, 521493, 869155, 960645, 1216817, 2607465, 3650451, 6084085, 18252255]

約数ペア:

[(1, 18252255), (3, 6084085), (5, 3650451), (7, 2607465), (15, 1216817), (19, 960645), (21, 869155), (35, 521493), (49, 372495), (57, 320215), (95, 192129), (105, 173831), (133, 137235), (147, 124165), (245, 74499), (285, 64043), (399, 45745), (665, 27447), (735, 24833), (931, 19605), (1307, 13965), (1995, 9149), (2793, 6535), (3921, 4655)]