21777826

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1439}}^1$

素因数の和:1518

約数の個数: 32

約数和(自身を含む): 39813120

約数和(自身を除く): 18035294

約数列:

[1, 2, 7, 14, 23, 46, 47, 94, 161, 322, 329, 658, 1081, 1439, 2162, 2878, 7567, 10073, 15134, 20146, 33097, 66194, 67633, 135266, 231679, 463358, 473431, 946862, 1555559, 3111118, 10888913, 21777826]

約数ペア:

[(1, 21777826), (2, 10888913), (7, 3111118), (14, 1555559), (23, 946862), (46, 473431), (47, 463358), (94, 231679), (161, 135266), (322, 67633), (329, 66194), (658, 33097), (1081, 20146), (1439, 15134), (2162, 10073), (2878, 7567)]