21626451

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2837}}^1$

素因数の和:2872

約数の個数: 36

約数和(自身を含む): 39255216

約数和(自身を除く): 17628765

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 231, 363, 693, 847, 1089, 2541, 2837, 7623, 8511, 19859, 25533, 31207, 59577, 93621, 178731, 218449, 280863, 343277, 655347, 1029831, 1966041, 2402939, 3089493, 7208817, 21626451]

約数ペア:

[(1, 21626451), (3, 7208817), (7, 3089493), (9, 2402939), (11, 1966041), (21, 1029831), (33, 655347), (63, 343277), (77, 280863), (99, 218449), (121, 178731), (231, 93621), (363, 59577), (693, 31207), (847, 25533), (1089, 19859), (2541, 8511), (2837, 7623)]