21488304

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:442

約数の個数: 80

約数和(自身を含む): 58924800

約数和(自身を除く): 37436496

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 43, 48, 58, 86, 87, 116, 129, 172, 174, 232, 258, 344, 348, 359, 464, 516, 688, 696, 718, 1032, 1077, 1247, 1392, 1436, 2064, 2154, 2494, 2872, 3741, 4308, 4988, 5744, 7482, 8616, 9976, 10411, 14964, 15437, 17232, 19952, 20822, 29928, 30874, 31233, 41644, 46311, 59856, 61748, 62466, 83288, 92622, 123496, 124932, 166576, 185244, 246992, 249864, 370488, 447673, 499728, 740976, 895346, 1343019, 1790692, 2686038, 3581384, 5372076, 7162768, 10744152, 21488304]

約数ペア:

[(1, 21488304), (2, 10744152), (3, 7162768), (4, 5372076), (6, 3581384), (8, 2686038), (12, 1790692), (16, 1343019), (24, 895346), (29, 740976), (43, 499728), (48, 447673), (58, 370488), (86, 249864), (87, 246992), (116, 185244), (129, 166576), (172, 124932), (174, 123496), (232, 92622), (258, 83288), (344, 62466), (348, 61748), (359, 59856), (464, 46311), (516, 41644), (688, 31233), (696, 30874), (718, 29928), (1032, 20822), (1077, 19952), (1247, 17232), (1392, 15437), (1436, 14964), (2064, 10411), (2154, 9976), (2494, 8616), (2872, 7482), (3741, 5744), (4308, 4988)]