20125161

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:115

約数の個数: 96

約数和(自身を含む): 39536640

約数和(自身を除く): 19411479

約数列:

[1, 3, 7, 9, 17, 19, 21, 23, 43, 51, 57, 63, 69, 119, 129, 133, 153, 161, 171, 207, 301, 323, 357, 387, 391, 399, 437, 483, 731, 817, 903, 969, 989, 1071, 1173, 1197, 1311, 1449, 2193, 2261, 2451, 2709, 2737, 2907, 2967, 3059, 3519, 3933, 5117, 5719, 6579, 6783, 6923, 7353, 7429, 8211, 8901, 9177, 13889, 15351, 16813, 17157, 18791, 20349, 20769, 22287, 24633, 27531, 41667, 46053, 50439, 51471, 52003, 56373, 62307, 66861, 97223, 117691, 125001, 131537, 151317, 156009, 169119, 291669, 319447, 353073, 394611, 468027, 875007, 958341, 1059219, 1183833, 2236129, 2875023, 6708387, 20125161]

約数ペア:

[(1, 20125161), (3, 6708387), (7, 2875023), (9, 2236129), (17, 1183833), (19, 1059219), (21, 958341), (23, 875007), (43, 468027), (51, 394611), (57, 353073), (63, 319447), (69, 291669), (119, 169119), (129, 156009), (133, 151317), (153, 131537), (161, 125001), (171, 117691), (207, 97223), (301, 66861), (323, 62307), (357, 56373), (387, 52003), (391, 51471), (399, 50439), (437, 46053), (483, 41667), (731, 27531), (817, 24633), (903, 22287), (969, 20769), (989, 20349), (1071, 18791), (1173, 17157), (1197, 16813), (1311, 15351), (1449, 13889), (2193, 9177), (2261, 8901), (2451, 8211), (2709, 7429), (2737, 7353), (2907, 6923), (2967, 6783), (3059, 6579), (3519, 5719), (3933, 5117)]