21010626

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:256

約数の個数: 96

約数和(自身を含む): 57028608

約数和(自身を除く): 36017982

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 101, 117, 126, 127, 182, 202, 234, 254, 273, 303, 381, 546, 606, 707, 762, 819, 889, 909, 1143, 1313, 1414, 1638, 1651, 1778, 1818, 2121, 2286, 2626, 2667, 3302, 3939, 4242, 4953, 5334, 6363, 7878, 8001, 9191, 9906, 11557, 11817, 12726, 12827, 14859, 16002, 18382, 23114, 23634, 25654, 27573, 29718, 34671, 38481, 55146, 69342, 76962, 82719, 89789, 104013, 115443, 165438, 166751, 179578, 208026, 230886, 269367, 333502, 500253, 538734, 808101, 1000506, 1167257, 1500759, 1616202, 2334514, 3001518, 3501771, 7003542, 10505313, 21010626]

約数ペア:

[(1, 21010626), (2, 10505313), (3, 7003542), (6, 3501771), (7, 3001518), (9, 2334514), (13, 1616202), (14, 1500759), (18, 1167257), (21, 1000506), (26, 808101), (39, 538734), (42, 500253), (63, 333502), (78, 269367), (91, 230886), (101, 208026), (117, 179578), (126, 166751), (127, 165438), (182, 115443), (202, 104013), (234, 89789), (254, 82719), (273, 76962), (303, 69342), (381, 55146), (546, 38481), (606, 34671), (707, 29718), (762, 27573), (819, 25654), (889, 23634), (909, 23114), (1143, 18382), (1313, 16002), (1414, 14859), (1638, 12827), (1651, 12726), (1778, 11817), (1818, 11557), (2121, 9906), (2286, 9191), (2626, 8001), (2667, 7878), (3302, 6363), (3939, 5334), (4242, 4953)]