21322245

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3329}}^1$

素因数の和:3405

約数の個数: 32

約数和(自身を含む): 39640320

約数和(自身を除く): 18318075

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 305, 427, 915, 1281, 2135, 3329, 6405, 9987, 16645, 23303, 49935, 69909, 116515, 203069, 349545, 609207, 1015345, 1421483, 3046035, 4264449, 7107415, 21322245]

約数ペア:

[(1, 21322245), (3, 7107415), (5, 4264449), (7, 3046035), (15, 1421483), (21, 1015345), (35, 609207), (61, 349545), (105, 203069), (183, 116515), (305, 69909), (427, 49935), (915, 23303), (1281, 16645), (2135, 9987), (3329, 6405)]