21268049474

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1\times {\mathrm{277}}^1$

素因数の和:628

約数の個数: 96

約数和(自身を含む): 38741948784

約数和(自身を除く): 17473899310

約数列:

[1, 2, 7, 14, 41, 49, 82, 97, 98, 194, 197, 277, 287, 394, 554, 574, 679, 1358, 1379, 1939, 2009, 2758, 3878, 3977, 4018, 4753, 7954, 8077, 9506, 9653, 11357, 13573, 16154, 19109, 19306, 22714, 26869, 27146, 27839, 38218, 53738, 54569, 55678, 56539, 79499, 109138, 113078, 133763, 158998, 188083, 194873, 267526, 376166, 381983, 389746, 395773, 556493, 763966, 783469, 791546, 936341, 1101629, 1112986, 1316581, 1566938, 1872682, 2203258, 2237329, 2633162, 2673881, 4474658, 5293193, 5347762, 5484283, 7711403, 10586386, 10968566, 15422806, 15661303, 31322606, 37052351, 38389981, 53979821, 74104702, 76779962, 107959642, 109629121, 217020913, 219258242, 259366457, 434041826, 518732914, 1519146391, 3038292782, 10634024737, 21268049474]

約数ペア:

[(1, 21268049474), (2, 10634024737), (7, 3038292782), (14, 1519146391), (41, 518732914), (49, 434041826), (82, 259366457), (97, 219258242), (98, 217020913), (194, 109629121), (197, 107959642), (277, 76779962), (287, 74104702), (394, 53979821), (554, 38389981), (574, 37052351), (679, 31322606), (1358, 15661303), (1379, 15422806), (1939, 10968566), (2009, 10586386), (2758, 7711403), (3878, 5484283), (3977, 5347762), (4018, 5293193), (4753, 4474658), (7954, 2673881), (8077, 2633162), (9506, 2237329), (9653, 2203258), (11357, 1872682), (13573, 1566938), (16154, 1316581), (19109, 1112986), (19306, 1101629), (22714, 936341), (26869, 791546), (27146, 783469), (27839, 763966), (38218, 556493), (53738, 395773), (54569, 389746), (55678, 381983), (56539, 376166), (79499, 267526), (109138, 194873), (113078, 188083), (133763, 158998)]