21444164

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{2957}}^1$

素因数の和:3012

約数の個数: 36

約数和(自身を含む): 44849196

約数和(自身を除く): 23405032

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 518, 1036, 1813, 2957, 3626, 5914, 7252, 11828, 20699, 41398, 82796, 109409, 144893, 218818, 289786, 437636, 579572, 765863, 1531726, 3063452, 5361041, 10722082, 21444164]

約数ペア:

[(1, 21444164), (2, 10722082), (4, 5361041), (7, 3063452), (14, 1531726), (28, 765863), (37, 579572), (49, 437636), (74, 289786), (98, 218818), (148, 144893), (196, 109409), (259, 82796), (518, 41398), (1036, 20699), (1813, 11828), (2957, 7252), (3626, 5914)]