17605791

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 30494464

約数和(自身を除く): 12888673

約数列:

[1, 3, 7, 9, 21, 43, 63, 67, 97, 129, 201, 291, 301, 387, 469, 603, 679, 873, 903, 1407, 2037, 2709, 2881, 4171, 4221, 6111, 6499, 8643, 12513, 19497, 20167, 25929, 29197, 37539, 45493, 58491, 60501, 87591, 136479, 181503, 262773, 279457, 409437, 838371, 1956199, 2515113, 5868597, 17605791]

約数ペア:

[(1, 17605791), (3, 5868597), (7, 2515113), (9, 1956199), (21, 838371), (43, 409437), (63, 279457), (67, 262773), (97, 181503), (129, 136479), (201, 87591), (291, 60501), (301, 58491), (387, 45493), (469, 37539), (603, 29197), (679, 25929), (873, 20167), (903, 19497), (1407, 12513), (2037, 8643), (2709, 6499), (2881, 6111), (4171, 4221)]