21230384

素因数分解:

$2^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1447}}^1$

素因数の和:1593

約数の個数: 40

約数和(自身を含む): 47401728

約数和(自身を除く): 26171344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 131, 262, 524, 917, 1048, 1447, 1834, 2096, 2894, 3668, 5788, 7336, 10129, 11576, 14672, 20258, 23152, 40516, 81032, 162064, 189557, 379114, 758228, 1326899, 1516456, 2653798, 3032912, 5307596, 10615192, 21230384]

約数ペア:

[(1, 21230384), (2, 10615192), (4, 5307596), (7, 3032912), (8, 2653798), (14, 1516456), (16, 1326899), (28, 758228), (56, 379114), (112, 189557), (131, 162064), (262, 81032), (524, 40516), (917, 23152), (1048, 20258), (1447, 14672), (1834, 11576), (2096, 10129), (2894, 7336), (3668, 5788)]