21050769728

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{258787}}^1$

素因数の和:258871

約数の個数: 56

約数和(自身を含む): 44172006144

約数和(自身を除く): 23121236416

約数列:

[1, 2, 4, 8, 16, 31, 32, 41, 62, 64, 82, 124, 164, 248, 328, 496, 656, 992, 1271, 1312, 1984, 2542, 2624, 5084, 10168, 20336, 40672, 81344, 258787, 517574, 1035148, 2070296, 4140592, 8022397, 8281184, 10610267, 16044794, 16562368, 21220534, 32089588, 42441068, 64179176, 84882136, 128358352, 169764272, 256716704, 328918277, 339528544, 513433408, 657836554, 679057088, 1315673108, 2631346216, 5262692432, 10525384864, 21050769728]

約数ペア:

[(1, 21050769728), (2, 10525384864), (4, 5262692432), (8, 2631346216), (16, 1315673108), (31, 679057088), (32, 657836554), (41, 513433408), (62, 339528544), (64, 328918277), (82, 256716704), (124, 169764272), (164, 128358352), (248, 84882136), (328, 64179176), (496, 42441068), (656, 32089588), (992, 21220534), (1271, 16562368), (1312, 16044794), (1984, 10610267), (2542, 8281184), (2624, 8022397), (5084, 4140592), (10168, 2070296), (20336, 1035148), (40672, 517574), (81344, 258787)]