21260283

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{631}}^1\times {\mathrm{1021}}^1$

素因数の和:1666

約数の個数: 16

約数和(自身を含む): 31003392

約数和(自身を除く): 9743109

約数列:

[1, 3, 11, 33, 631, 1021, 1893, 3063, 6941, 11231, 20823, 33693, 644251, 1932753, 7086761, 21260283]

約数ペア:

[(1, 21260283), (3, 7086761), (11, 1932753), (33, 644251), (631, 33693), (1021, 20823), (1893, 11231), (3063, 6941)]