21912737

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{631}}^1$

素因数の和:701

約数の個数: 24

約数和(自身を含む): 28242816

約数和(自身を除く): 6330079

約数列:

[1, 7, 11, 41, 77, 121, 287, 451, 631, 847, 3157, 4417, 4961, 6941, 25871, 34727, 48587, 76351, 181097, 284581, 534457, 1992067, 3130391, 21912737]

約数ペア:

[(1, 21912737), (7, 3130391), (11, 1992067), (41, 534457), (77, 284581), (121, 181097), (287, 76351), (451, 48587), (631, 34727), (847, 25871), (3157, 6941), (4417, 4961)]