21213423

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4373}}^1$

素因数の和:4404

約数の個数: 36

約数和(自身を含む): 38893608

約数和(自身を除く): 17680185

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4373, 4851, 13119, 30611, 39357, 48103, 91833, 144309, 214277, 275499, 336721, 432927, 642831, 1010163, 1928493, 2357047, 3030489, 7071141, 21213423]

約数ペア:

[(1, 21213423), (3, 7071141), (7, 3030489), (9, 2357047), (11, 1928493), (21, 1010163), (33, 642831), (49, 432927), (63, 336721), (77, 275499), (99, 214277), (147, 144309), (231, 91833), (441, 48103), (539, 39357), (693, 30611), (1617, 13119), (4373, 4851)]