20982864

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:532

約数の個数: 80

約数和(自身を含む): 62460288

約数和(自身を除く): 41477424

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 197, 317, 336, 394, 591, 634, 788, 951, 1182, 1268, 1379, 1576, 1902, 2219, 2364, 2536, 2758, 3152, 3804, 4137, 4438, 4728, 5072, 5516, 6657, 7608, 8274, 8876, 9456, 11032, 13314, 15216, 16548, 17752, 22064, 26628, 33096, 35504, 53256, 62449, 66192, 106512, 124898, 187347, 249796, 374694, 437143, 499592, 749388, 874286, 999184, 1311429, 1498776, 1748572, 2622858, 2997552, 3497144, 5245716, 6994288, 10491432, 20982864]

約数ペア:

[(1, 20982864), (2, 10491432), (3, 6994288), (4, 5245716), (6, 3497144), (7, 2997552), (8, 2622858), (12, 1748572), (14, 1498776), (16, 1311429), (21, 999184), (24, 874286), (28, 749388), (42, 499592), (48, 437143), (56, 374694), (84, 249796), (112, 187347), (168, 124898), (197, 106512), (317, 66192), (336, 62449), (394, 53256), (591, 35504), (634, 33096), (788, 26628), (951, 22064), (1182, 17752), (1268, 16548), (1379, 15216), (1576, 13314), (1902, 11032), (2219, 9456), (2364, 8876), (2536, 8274), (2758, 7608), (3152, 6657), (3804, 5516), (4137, 5072), (4438, 4728)]