20918352

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4789}}^1$

素因数の和:4820

約数の個数: 80

約数和(自身を含む): 66523520

約数和(自身を除く): 45605168

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 52, 56, 78, 84, 91, 104, 112, 156, 168, 182, 208, 273, 312, 336, 364, 546, 624, 728, 1092, 1456, 2184, 4368, 4789, 9578, 14367, 19156, 28734, 33523, 38312, 57468, 62257, 67046, 76624, 100569, 114936, 124514, 134092, 186771, 201138, 229872, 249028, 268184, 373542, 402276, 435799, 498056, 536368, 747084, 804552, 871598, 996112, 1307397, 1494168, 1609104, 1743196, 2614794, 2988336, 3486392, 5229588, 6972784, 10459176, 20918352]

約数ペア:

[(1, 20918352), (2, 10459176), (3, 6972784), (4, 5229588), (6, 3486392), (7, 2988336), (8, 2614794), (12, 1743196), (13, 1609104), (14, 1494168), (16, 1307397), (21, 996112), (24, 871598), (26, 804552), (28, 747084), (39, 536368), (42, 498056), (48, 435799), (52, 402276), (56, 373542), (78, 268184), (84, 249028), (91, 229872), (104, 201138), (112, 186771), (156, 134092), (168, 124514), (182, 114936), (208, 100569), (273, 76624), (312, 67046), (336, 62257), (364, 57468), (546, 38312), (624, 33523), (728, 28734), (1092, 19156), (1456, 14367), (2184, 9578), (4368, 4789)]