21454587

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{373}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 39207168

約数和(自身を除く): 17752581

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 83, 99, 231, 249, 373, 581, 693, 747, 913, 1119, 1743, 2611, 2739, 3357, 4103, 5229, 6391, 7833, 8217, 12309, 19173, 23499, 28721, 30959, 36927, 57519, 86163, 92877, 216713, 258489, 278631, 340549, 650139, 1021647, 1950417, 2383843, 3064941, 7151529, 21454587]

約数ペア:

[(1, 21454587), (3, 7151529), (7, 3064941), (9, 2383843), (11, 1950417), (21, 1021647), (33, 650139), (63, 340549), (77, 278631), (83, 258489), (99, 216713), (231, 92877), (249, 86163), (373, 57519), (581, 36927), (693, 30959), (747, 28721), (913, 23499), (1119, 19173), (1743, 12309), (2611, 8217), (2739, 7833), (3357, 6391), (4103, 5229)]