20537748

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 67092480

約数和(自身を除く): 46554732

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 31, 33, 36, 42, 44, 62, 63, 66, 77, 84, 93, 99, 124, 126, 132, 154, 186, 198, 217, 231, 239, 252, 279, 308, 341, 372, 396, 434, 462, 478, 558, 651, 682, 693, 717, 868, 924, 956, 1023, 1116, 1302, 1364, 1386, 1434, 1673, 1953, 2046, 2151, 2387, 2604, 2629, 2772, 2868, 3069, 3346, 3906, 4092, 4302, 4774, 5019, 5258, 6138, 6692, 7161, 7409, 7812, 7887, 8604, 9548, 10038, 10516, 12276, 14322, 14818, 15057, 15774, 18403, 20076, 21483, 22227, 23661, 28644, 29636, 30114, 31548, 36806, 42966, 44454, 47322, 51863, 55209, 60228, 66681, 73612, 81499, 85932, 88908, 94644, 103726, 110418, 133362, 155589, 162998, 165627, 207452, 220836, 244497, 266724, 311178, 325996, 331254, 466767, 488994, 570493, 622356, 662508, 733491, 933534, 977988, 1140986, 1466982, 1711479, 1867068, 2281972, 2933964, 3422958, 5134437, 6845916, 10268874, 20537748]

約数ペア:

[(1, 20537748), (2, 10268874), (3, 6845916), (4, 5134437), (6, 3422958), (7, 2933964), (9, 2281972), (11, 1867068), (12, 1711479), (14, 1466982), (18, 1140986), (21, 977988), (22, 933534), (28, 733491), (31, 662508), (33, 622356), (36, 570493), (42, 488994), (44, 466767), (62, 331254), (63, 325996), (66, 311178), (77, 266724), (84, 244497), (93, 220836), (99, 207452), (124, 165627), (126, 162998), (132, 155589), (154, 133362), (186, 110418), (198, 103726), (217, 94644), (231, 88908), (239, 85932), (252, 81499), (279, 73612), (308, 66681), (341, 60228), (372, 55209), (396, 51863), (434, 47322), (462, 44454), (478, 42966), (558, 36806), (651, 31548), (682, 30114), (693, 29636), (717, 28644), (868, 23661), (924, 22227), (956, 21483), (1023, 20076), (1116, 18403), (1302, 15774), (1364, 15057), (1386, 14818), (1434, 14322), (1673, 12276), (1953, 10516), (2046, 10038), (2151, 9548), (2387, 8604), (2604, 7887), (2629, 7812), (2772, 7409), (2868, 7161), (3069, 6692), (3346, 6138), (3906, 5258), (4092, 5019), (4302, 4774)]