20031543

素因数分解:

$3^4\times 7^4\times {\mathrm{103}}^1$

素因数の和:143

約数の個数: 50

約数和(自身を含む): 35247784

約数和(自身を除く): 15216241

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 103, 147, 189, 309, 343, 441, 567, 721, 927, 1029, 1323, 2163, 2401, 2781, 3087, 3969, 5047, 6489, 7203, 8343, 9261, 15141, 19467, 21609, 27783, 35329, 45423, 58401, 64827, 105987, 136269, 194481, 247303, 317961, 408807, 741909, 953883, 2225727, 2861649, 6677181, 20031543]

約数ペア:

[(1, 20031543), (3, 6677181), (7, 2861649), (9, 2225727), (21, 953883), (27, 741909), (49, 408807), (63, 317961), (81, 247303), (103, 194481), (147, 136269), (189, 105987), (309, 64827), (343, 58401), (441, 45423), (567, 35329), (721, 27783), (927, 21609), (1029, 19467), (1323, 15141), (2163, 9261), (2401, 8343), (2781, 7203), (3087, 6489), (3969, 5047)]