20399148

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{223}}^1$

素因数の和:265

約数の個数: 144

約数和(自身を含む): 66734080

約数和(自身を除く): 46334932

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 42, 44, 54, 63, 66, 77, 84, 99, 108, 121, 126, 132, 154, 189, 198, 223, 231, 242, 252, 297, 308, 363, 378, 396, 446, 462, 484, 594, 669, 693, 726, 756, 847, 892, 924, 1089, 1188, 1338, 1386, 1452, 1561, 1694, 2007, 2079, 2178, 2453, 2541, 2676, 2772, 3122, 3267, 3388, 4014, 4158, 4356, 4683, 4906, 5082, 6021, 6244, 6534, 7359, 7623, 8028, 8316, 9366, 9812, 10164, 12042, 13068, 14049, 14718, 15246, 17171, 18732, 22077, 22869, 24084, 26983, 28098, 29436, 30492, 34342, 42147, 44154, 45738, 51513, 53966, 56196, 66231, 68684, 80949, 84294, 88308, 91476, 103026, 107932, 132462, 154539, 161898, 168588, 188881, 206052, 242847, 264924, 309078, 323796, 377762, 463617, 485694, 566643, 618156, 728541, 755524, 927234, 971388, 1133286, 1457082, 1699929, 1854468, 2266572, 2914164, 3399858, 5099787, 6799716, 10199574, 20399148]

約数ペア:

[(1, 20399148), (2, 10199574), (3, 6799716), (4, 5099787), (6, 3399858), (7, 2914164), (9, 2266572), (11, 1854468), (12, 1699929), (14, 1457082), (18, 1133286), (21, 971388), (22, 927234), (27, 755524), (28, 728541), (33, 618156), (36, 566643), (42, 485694), (44, 463617), (54, 377762), (63, 323796), (66, 309078), (77, 264924), (84, 242847), (99, 206052), (108, 188881), (121, 168588), (126, 161898), (132, 154539), (154, 132462), (189, 107932), (198, 103026), (223, 91476), (231, 88308), (242, 84294), (252, 80949), (297, 68684), (308, 66231), (363, 56196), (378, 53966), (396, 51513), (446, 45738), (462, 44154), (484, 42147), (594, 34342), (669, 30492), (693, 29436), (726, 28098), (756, 26983), (847, 24084), (892, 22869), (924, 22077), (1089, 18732), (1188, 17171), (1338, 15246), (1386, 14718), (1452, 14049), (1561, 13068), (1694, 12042), (2007, 10164), (2079, 9812), (2178, 9366), (2453, 8316), (2541, 8028), (2676, 7623), (2772, 7359), (3122, 6534), (3267, 6244), (3388, 6021), (4014, 5082), (4158, 4906), (4356, 4683)]