20971808

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4583}}^1$

素因数の和:4617

約数の個数: 48

約数和(自身を含む): 48517056

約数和(自身を除く): 27545248

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 88, 104, 143, 176, 208, 286, 352, 416, 572, 1144, 2288, 4576, 4583, 9166, 18332, 36664, 50413, 59579, 73328, 100826, 119158, 146656, 201652, 238316, 403304, 476632, 655369, 806608, 953264, 1310738, 1613216, 1906528, 2621476, 5242952, 10485904, 20971808]

約数ペア:

[(1, 20971808), (2, 10485904), (4, 5242952), (8, 2621476), (11, 1906528), (13, 1613216), (16, 1310738), (22, 953264), (26, 806608), (32, 655369), (44, 476632), (52, 403304), (88, 238316), (104, 201652), (143, 146656), (176, 119158), (208, 100826), (286, 73328), (352, 59579), (416, 50413), (572, 36664), (1144, 18332), (2288, 9166), (4576, 4583)]