20581938

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{337}}^1$

素因数の和:393

約数の個数: 80

約数和(自身を含む): 51531480

約数和(自身を除く): 30949542

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 29, 39, 54, 58, 78, 81, 87, 117, 162, 174, 234, 261, 337, 351, 377, 522, 674, 702, 754, 783, 1011, 1053, 1131, 1566, 2022, 2106, 2262, 2349, 3033, 3393, 4381, 4698, 6066, 6786, 8762, 9099, 9773, 10179, 13143, 18198, 19546, 20358, 26286, 27297, 29319, 30537, 39429, 54594, 58638, 61074, 78858, 87957, 118287, 127049, 175914, 236574, 254098, 263871, 354861, 381147, 527742, 709722, 762294, 791613, 1143441, 1583226, 2286882, 3430323, 6860646, 10290969, 20581938]

約数ペア:

[(1, 20581938), (2, 10290969), (3, 6860646), (6, 3430323), (9, 2286882), (13, 1583226), (18, 1143441), (26, 791613), (27, 762294), (29, 709722), (39, 527742), (54, 381147), (58, 354861), (78, 263871), (81, 254098), (87, 236574), (117, 175914), (162, 127049), (174, 118287), (234, 87957), (261, 78858), (337, 61074), (351, 58638), (377, 54594), (522, 39429), (674, 30537), (702, 29319), (754, 27297), (783, 26286), (1011, 20358), (1053, 19546), (1131, 18198), (1566, 13143), (2022, 10179), (2106, 9773), (2262, 9099), (2349, 8762), (3033, 6786), (3393, 6066), (4381, 4698)]