20333984

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{947}}^1$

素因数の和:1029

約数の個数: 48

約数和(自身を含む): 44434656

約数和(自身を除く): 24100672

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 61, 88, 122, 176, 244, 352, 488, 671, 947, 976, 1342, 1894, 1952, 2684, 3788, 5368, 7576, 10417, 10736, 15152, 20834, 21472, 30304, 41668, 57767, 83336, 115534, 166672, 231068, 333344, 462136, 635437, 924272, 1270874, 1848544, 2541748, 5083496, 10166992, 20333984]

約数ペア:

[(1, 20333984), (2, 10166992), (4, 5083496), (8, 2541748), (11, 1848544), (16, 1270874), (22, 924272), (32, 635437), (44, 462136), (61, 333344), (88, 231068), (122, 166672), (176, 115534), (244, 83336), (352, 57767), (488, 41668), (671, 30304), (947, 21472), (976, 20834), (1342, 15152), (1894, 10736), (1952, 10417), (2684, 7576), (3788, 5368)]