20711523

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 33278976

約数和(自身を除く): 12567453

約数列:

[1, 3, 7, 21, 23, 69, 137, 161, 313, 411, 483, 939, 959, 2191, 2877, 3151, 6573, 7199, 9453, 21597, 22057, 42881, 50393, 66171, 128643, 151179, 300167, 900501, 986263, 2958789, 6903841, 20711523]

約数ペア:

[(1, 20711523), (3, 6903841), (7, 2958789), (21, 986263), (23, 900501), (69, 300167), (137, 151179), (161, 128643), (313, 66171), (411, 50393), (483, 42881), (939, 22057), (959, 21597), (2191, 9453), (2877, 7199), (3151, 6573)]