21009534

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:294

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 34148226

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 23, 26, 39, 42, 46, 49, 69, 78, 91, 98, 138, 147, 161, 182, 239, 273, 294, 299, 322, 478, 483, 546, 598, 637, 717, 897, 966, 1127, 1274, 1434, 1673, 1794, 1911, 2093, 2254, 3107, 3346, 3381, 3822, 4186, 5019, 5497, 6214, 6279, 6762, 9321, 10038, 10994, 11711, 12558, 14651, 16491, 18642, 21749, 23422, 29302, 32982, 35133, 38479, 43498, 43953, 65247, 70266, 71461, 76958, 87906, 115437, 130494, 142922, 152243, 214383, 230874, 269353, 304486, 428766, 456729, 500227, 538706, 808059, 913458, 1000454, 1500681, 1616118, 3001362, 3501589, 7003178, 10504767, 21009534]

約数ペア:

[(1, 21009534), (2, 10504767), (3, 7003178), (6, 3501589), (7, 3001362), (13, 1616118), (14, 1500681), (21, 1000454), (23, 913458), (26, 808059), (39, 538706), (42, 500227), (46, 456729), (49, 428766), (69, 304486), (78, 269353), (91, 230874), (98, 214383), (138, 152243), (147, 142922), (161, 130494), (182, 115437), (239, 87906), (273, 76958), (294, 71461), (299, 70266), (322, 65247), (478, 43953), (483, 43498), (546, 38479), (598, 35133), (637, 32982), (717, 29302), (897, 23422), (966, 21749), (1127, 18642), (1274, 16491), (1434, 14651), (1673, 12558), (1794, 11711), (1911, 10994), (2093, 10038), (2254, 9321), (3107, 6762), (3346, 6279), (3381, 6214), (3822, 5497), (4186, 5019)]