19522089

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:437

約数の個数: 24

約数和(自身を含む): 28933632

約数和(自身を除く): 9411543

約数列:

[1, 3, 9, 71, 137, 213, 223, 411, 639, 669, 1233, 2007, 9727, 15833, 29181, 30551, 47499, 87543, 91653, 142497, 274959, 2169121, 6507363, 19522089]

約数ペア:

[(1, 19522089), (3, 6507363), (9, 2169121), (71, 274959), (137, 142497), (213, 91653), (223, 87543), (411, 47499), (639, 30551), (669, 29181), (1233, 15833), (2007, 9727)]