21087621753

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{86249}}^1$

素因数の和:86533

約数の個数: 32

約数和(自身を含む): 31795200000

約数和(自身を除く): 10707578247

約数列:

[1, 3, 11, 31, 33, 93, 239, 341, 717, 1023, 2629, 7409, 7887, 22227, 81499, 86249, 244497, 258747, 948739, 2673719, 2846217, 8021157, 20613511, 29410909, 61840533, 88232727, 226748621, 639018841, 680245863, 1917056523, 7029207251, 21087621753]

約数ペア:

[(1, 21087621753), (3, 7029207251), (11, 1917056523), (31, 680245863), (33, 639018841), (93, 226748621), (239, 88232727), (341, 61840533), (717, 29410909), (1023, 20613511), (2629, 8021157), (7409, 2846217), (7887, 2673719), (22227, 948739), (81499, 258747), (86249, 244497)]