20875512

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{907}}^1$

素因数の和:1060

約数の個数: 64

約数和(自身を含む): 60145920

約数和(自身を除く): 39270408

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 137, 168, 274, 411, 548, 822, 907, 959, 1096, 1644, 1814, 1918, 2721, 2877, 3288, 3628, 3836, 5442, 5754, 6349, 7256, 7672, 10884, 11508, 12698, 19047, 21768, 23016, 25396, 38094, 50792, 76188, 124259, 152376, 248518, 372777, 497036, 745554, 869813, 994072, 1491108, 1739626, 2609439, 2982216, 3479252, 5218878, 6958504, 10437756, 20875512]

約数ペア:

[(1, 20875512), (2, 10437756), (3, 6958504), (4, 5218878), (6, 3479252), (7, 2982216), (8, 2609439), (12, 1739626), (14, 1491108), (21, 994072), (24, 869813), (28, 745554), (42, 497036), (56, 372777), (84, 248518), (137, 152376), (168, 124259), (274, 76188), (411, 50792), (548, 38094), (822, 25396), (907, 23016), (959, 21768), (1096, 19047), (1644, 12698), (1814, 11508), (1918, 10884), (2721, 7672), (2877, 7256), (3288, 6349), (3628, 5754), (3836, 5442)]