21058132

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{641}}^1$

素因数の和:879

約数の個数: 24

約数和(自身を含む): 37965312

約数和(自身を除く): 16907180

約数列:

[1, 2, 4, 43, 86, 172, 191, 382, 641, 764, 1282, 2564, 8213, 16426, 27563, 32852, 55126, 110252, 122431, 244862, 489724, 5264533, 10529066, 21058132]

約数ペア:

[(1, 21058132), (2, 10529066), (4, 5264533), (43, 489724), (86, 244862), (172, 122431), (191, 110252), (382, 55126), (641, 32852), (764, 27563), (1282, 16426), (2564, 8213)]