21000916551

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{2179}}^1\times {\mathrm{3343}}^1$

素因数の和:5587

約数の個数: 24

約数和(自身を含む): 28955562240

約数和(自身を除く): 7954645689

約数列:

[1, 3, 31, 93, 961, 2179, 2883, 3343, 6537, 10029, 67549, 103633, 202647, 310899, 2094019, 3212623, 6282057, 7284397, 9637869, 21853191, 225816307, 677448921, 7000305517, 21000916551]

約数ペア:

[(1, 21000916551), (3, 7000305517), (31, 677448921), (93, 225816307), (961, 21853191), (2179, 9637869), (2883, 7284397), (3343, 6282057), (6537, 3212623), (10029, 2094019), (67549, 310899), (103633, 202647)]