20969696

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1453}}^1$

素因数の和:1515

約数の個数: 48

約数和(自身を含む): 46167408

約数和(自身を除く): 25197712

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 82, 88, 164, 176, 328, 352, 451, 656, 902, 1312, 1453, 1804, 2906, 3608, 5812, 7216, 11624, 14432, 15983, 23248, 31966, 46496, 59573, 63932, 119146, 127864, 238292, 255728, 476584, 511456, 655303, 953168, 1310606, 1906336, 2621212, 5242424, 10484848, 20969696]

約数ペア:

[(1, 20969696), (2, 10484848), (4, 5242424), (8, 2621212), (11, 1906336), (16, 1310606), (22, 953168), (32, 655303), (41, 511456), (44, 476584), (82, 255728), (88, 238292), (164, 127864), (176, 119146), (328, 63932), (352, 59573), (451, 46496), (656, 31966), (902, 23248), (1312, 15983), (1453, 14432), (1804, 11624), (2906, 7216), (3608, 5812)]