21181413

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 33707520

約数和(自身を除く): 12526107

約数列:

[1, 3, 11, 23, 33, 43, 59, 69, 121, 129, 177, 253, 363, 473, 649, 759, 989, 1357, 1419, 1947, 2537, 2783, 2967, 4071, 5203, 7139, 7611, 8349, 10879, 14927, 15609, 21417, 27907, 32637, 44781, 58351, 83721, 119669, 164197, 175053, 306977, 359007, 492591, 641861, 920931, 1925583, 7060471, 21181413]

約数ペア:

[(1, 21181413), (3, 7060471), (11, 1925583), (23, 920931), (33, 641861), (43, 492591), (59, 359007), (69, 306977), (121, 175053), (129, 164197), (177, 119669), (253, 83721), (363, 58351), (473, 44781), (649, 32637), (759, 27907), (989, 21417), (1357, 15609), (1419, 14927), (1947, 10879), (2537, 8349), (2783, 7611), (2967, 7139), (4071, 5203)]