20970752

素因数分解:

$2^8\times {\mathrm{11}}^2\times {\mathrm{677}}^1$

素因数の和:715

約数の個数: 54

約数和(自身を含む): 46078914

約数和(自身を除く): 25108162

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 121, 128, 176, 242, 256, 352, 484, 677, 704, 968, 1354, 1408, 1936, 2708, 2816, 3872, 5416, 7447, 7744, 10832, 14894, 15488, 21664, 29788, 30976, 43328, 59576, 81917, 86656, 119152, 163834, 173312, 238304, 327668, 476608, 655336, 953216, 1310672, 1906432, 2621344, 5242688, 10485376, 20970752]

約数ペア:

[(1, 20970752), (2, 10485376), (4, 5242688), (8, 2621344), (11, 1906432), (16, 1310672), (22, 953216), (32, 655336), (44, 476608), (64, 327668), (88, 238304), (121, 173312), (128, 163834), (176, 119152), (242, 86656), (256, 81917), (352, 59576), (484, 43328), (677, 30976), (704, 29788), (968, 21664), (1354, 15488), (1408, 14894), (1936, 10832), (2708, 7744), (2816, 7447), (3872, 5416)]