20032011

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 32348160

約数和(自身を除く): 12316149

約数列:

[1, 3, 9, 23, 29, 47, 69, 71, 87, 141, 207, 213, 261, 423, 639, 667, 1081, 1363, 1633, 2001, 2059, 3243, 3337, 4089, 4899, 6003, 6177, 9729, 10011, 12267, 14697, 18531, 30033, 31349, 47357, 76751, 94047, 96773, 142071, 230253, 282141, 290319, 426213, 690759, 870957, 2225779, 6677337, 20032011]

約数ペア:

[(1, 20032011), (3, 6677337), (9, 2225779), (23, 870957), (29, 690759), (47, 426213), (69, 290319), (71, 282141), (87, 230253), (141, 142071), (207, 96773), (213, 94047), (261, 76751), (423, 47357), (639, 31349), (667, 30033), (1081, 18531), (1363, 14697), (1633, 12267), (2001, 10011), (2059, 9729), (3243, 6177), (3337, 6003), (4089, 4899)]