21542565

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{953}}^1$

素因数の和:1109

約数の個数: 32

約数和(自身を含む): 37915776

約数和(自身を除く): 16373211

約数列:

[1, 3, 5, 11, 15, 33, 55, 137, 165, 411, 685, 953, 1507, 2055, 2859, 4521, 4765, 7535, 10483, 14295, 22605, 31449, 52415, 130561, 157245, 391683, 652805, 1436171, 1958415, 4308513, 7180855, 21542565]

約数ペア:

[(1, 21542565), (3, 7180855), (5, 4308513), (11, 1958415), (15, 1436171), (33, 652805), (55, 391683), (137, 157245), (165, 130561), (411, 52415), (685, 31449), (953, 22605), (1507, 14295), (2055, 10483), (2859, 7535), (4521, 4765)]