21308848

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2953}}^1$

素因数の和:3013

約数の個数: 40

約数和(自身を含む): 46153296

約数和(自身を除く): 24844448

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 328, 451, 656, 902, 1804, 2953, 3608, 5906, 7216, 11812, 23624, 32483, 47248, 64966, 121073, 129932, 242146, 259864, 484292, 519728, 968584, 1331803, 1937168, 2663606, 5327212, 10654424, 21308848]

約数ペア:

[(1, 21308848), (2, 10654424), (4, 5327212), (8, 2663606), (11, 1937168), (16, 1331803), (22, 968584), (41, 519728), (44, 484292), (82, 259864), (88, 242146), (164, 129932), (176, 121073), (328, 64966), (451, 47248), (656, 32483), (902, 23624), (1804, 11812), (2953, 7216), (3608, 5906)]