28254051

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:121

約数の個数: 96

約数和(自身を含む): 54632448

約数和(自身を除く): 26378397

約数列:

[1, 3, 7, 9, 17, 21, 23, 31, 37, 51, 63, 69, 93, 111, 119, 153, 161, 207, 217, 259, 279, 333, 357, 391, 483, 527, 629, 651, 713, 777, 851, 1071, 1147, 1173, 1449, 1581, 1887, 1953, 2139, 2331, 2553, 2737, 3441, 3519, 3689, 4403, 4743, 4991, 5661, 5957, 6417, 7659, 8029, 8211, 10323, 11067, 12121, 13209, 14467, 14973, 17871, 19499, 24087, 24633, 26381, 33201, 36363, 39627, 43401, 44919, 53613, 58497, 72261, 79143, 84847, 101269, 109089, 130203, 136493, 175491, 184667, 237429, 254541, 303807, 409479, 448477, 554001, 763623, 911421, 1228437, 1345431, 1662003, 3139339, 4036293, 9418017, 28254051]

約数ペア:

[(1, 28254051), (3, 9418017), (7, 4036293), (9, 3139339), (17, 1662003), (21, 1345431), (23, 1228437), (31, 911421), (37, 763623), (51, 554001), (63, 448477), (69, 409479), (93, 303807), (111, 254541), (119, 237429), (153, 184667), (161, 175491), (207, 136493), (217, 130203), (259, 109089), (279, 101269), (333, 84847), (357, 79143), (391, 72261), (483, 58497), (527, 53613), (629, 44919), (651, 43401), (713, 39627), (777, 36363), (851, 33201), (1071, 26381), (1147, 24633), (1173, 24087), (1449, 19499), (1581, 17871), (1887, 14973), (1953, 14467), (2139, 13209), (2331, 12121), (2553, 11067), (2737, 10323), (3441, 8211), (3519, 8029), (3689, 7659), (4403, 6417), (4743, 5957), (4991, 5661)]