26881239

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 19083561

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 121, 149, 213, 231, 363, 447, 497, 781, 847, 1043, 1491, 1639, 2343, 2541, 3129, 4917, 5467, 8591, 10579, 11473, 16401, 18029, 25773, 31737, 34419, 54087, 60137, 74053, 116369, 126203, 180411, 222159, 349107, 378609, 814583, 1280059, 2443749, 3840177, 8960413, 26881239]

約数ペア:

[(1, 26881239), (3, 8960413), (7, 3840177), (11, 2443749), (21, 1280059), (33, 814583), (71, 378609), (77, 349107), (121, 222159), (149, 180411), (213, 126203), (231, 116369), (363, 74053), (447, 60137), (497, 54087), (781, 34419), (847, 31737), (1043, 25773), (1491, 18029), (1639, 16401), (2343, 11473), (2541, 10579), (3129, 8591), (4917, 5467)]