21180604

素因数分解:

$2^2\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 37876608

約数和(自身を除く): 16696004

約数列:

[1, 2, 4, 83, 131, 166, 262, 332, 487, 524, 974, 1948, 10873, 21746, 40421, 43492, 63797, 80842, 127594, 161684, 255188, 5295151, 10590302, 21180604]

約数ペア:

[(1, 21180604), (2, 10590302), (4, 5295151), (83, 255188), (131, 161684), (166, 127594), (262, 80842), (332, 63797), (487, 43492), (524, 40421), (974, 21746), (1948, 10873)]