21878912

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{379}}^1$

素因数の和:445

約数の個数: 64

約数和(自身を含む): 48837600

約数和(自身を除く): 26958688

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 64, 82, 88, 128, 164, 176, 328, 352, 379, 451, 656, 704, 758, 902, 1312, 1408, 1516, 1804, 2624, 3032, 3608, 4169, 5248, 6064, 7216, 8338, 12128, 14432, 15539, 16676, 24256, 28864, 31078, 33352, 48512, 57728, 62156, 66704, 124312, 133408, 170929, 248624, 266816, 341858, 497248, 533632, 683716, 994496, 1367432, 1988992, 2734864, 5469728, 10939456, 21878912]

約数ペア:

[(1, 21878912), (2, 10939456), (4, 5469728), (8, 2734864), (11, 1988992), (16, 1367432), (22, 994496), (32, 683716), (41, 533632), (44, 497248), (64, 341858), (82, 266816), (88, 248624), (128, 170929), (164, 133408), (176, 124312), (328, 66704), (352, 62156), (379, 57728), (451, 48512), (656, 33352), (704, 31078), (758, 28864), (902, 24256), (1312, 16676), (1408, 15539), (1516, 14432), (1804, 12128), (2624, 8338), (3032, 7216), (3608, 6064), (4169, 5248)]