21890752

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:425

約数の個数: 56

約数和(自身を含む): 47493936

約数和(自身を除く): 25603184

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 83, 104, 166, 208, 317, 332, 416, 634, 664, 832, 1079, 1268, 1328, 2158, 2536, 2656, 4121, 4316, 5072, 5312, 8242, 8632, 10144, 16484, 17264, 20288, 26311, 32968, 34528, 52622, 65936, 69056, 105244, 131872, 210488, 263744, 342043, 420976, 684086, 841952, 1368172, 1683904, 2736344, 5472688, 10945376, 21890752]

約数ペア:

[(1, 21890752), (2, 10945376), (4, 5472688), (8, 2736344), (13, 1683904), (16, 1368172), (26, 841952), (32, 684086), (52, 420976), (64, 342043), (83, 263744), (104, 210488), (166, 131872), (208, 105244), (317, 69056), (332, 65936), (416, 52622), (634, 34528), (664, 32968), (832, 26311), (1079, 20288), (1268, 17264), (1328, 16484), (2158, 10144), (2536, 8632), (2656, 8242), (4121, 5312), (4316, 5072)]