21406794

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{457}}^1$

素因数の和:710

約数の個数: 32

約数和(自身を含む): 44275776

約数和(自身を除く): 22868982

約数列:

[1, 2, 3, 6, 37, 74, 111, 211, 222, 422, 457, 633, 914, 1266, 1371, 2742, 7807, 15614, 16909, 23421, 33818, 46842, 50727, 96427, 101454, 192854, 289281, 578562, 3567799, 7135598, 10703397, 21406794]

約数ペア:

[(1, 21406794), (2, 10703397), (3, 7135598), (6, 3567799), (37, 578562), (74, 289281), (111, 192854), (211, 101454), (222, 96427), (422, 50727), (457, 46842), (633, 33818), (914, 23421), (1266, 16909), (1371, 15614), (2742, 7807)]