27820569

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 44015616

約数和(自身を除く): 16195047

約数列:

[1, 3, 7, 21, 47, 71, 141, 213, 329, 397, 497, 987, 1191, 1491, 2779, 3337, 8337, 10011, 18659, 23359, 28187, 55977, 70077, 84561, 130613, 197309, 391839, 591927, 1324789, 3974367, 9273523, 27820569]

約数ペア:

[(1, 27820569), (3, 9273523), (7, 3974367), (21, 1324789), (47, 591927), (71, 391839), (141, 197309), (213, 130613), (329, 84561), (397, 70077), (497, 55977), (987, 28187), (1191, 23359), (1491, 18659), (2779, 10011), (3337, 8337)]