21216393

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{5227}}^1$

素因数の和:5285

約数の個数: 24

約数和(自身を含む): 34253856

約数和(自身を除く): 13037463

約数列:

[1, 3, 9, 11, 33, 41, 99, 123, 369, 451, 1353, 4059, 5227, 15681, 47043, 57497, 172491, 214307, 517473, 642921, 1928763, 2357377, 7072131, 21216393]

約数ペア:

[(1, 21216393), (3, 7072131), (9, 2357377), (11, 1928763), (33, 642921), (41, 517473), (99, 214307), (123, 172491), (369, 57497), (451, 47043), (1353, 15681), (4059, 5227)]