20644512

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1042

約数の個数: 96

約数和(自身を含む): 63995904

約数和(自身を除く): 43351392

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 32, 42, 48, 56, 62, 84, 93, 96, 112, 124, 168, 186, 217, 224, 248, 336, 372, 434, 496, 651, 672, 744, 868, 991, 992, 1302, 1488, 1736, 1982, 2604, 2973, 2976, 3472, 3964, 5208, 5946, 6937, 6944, 7928, 10416, 11892, 13874, 15856, 20811, 20832, 23784, 27748, 30721, 31712, 41622, 47568, 55496, 61442, 83244, 92163, 95136, 110992, 122884, 166488, 184326, 215047, 221984, 245768, 332976, 368652, 430094, 491536, 645141, 665952, 737304, 860188, 983072, 1290282, 1474608, 1720376, 2580564, 2949216, 3440752, 5161128, 6881504, 10322256, 20644512]

約数ペア:

[(1, 20644512), (2, 10322256), (3, 6881504), (4, 5161128), (6, 3440752), (7, 2949216), (8, 2580564), (12, 1720376), (14, 1474608), (16, 1290282), (21, 983072), (24, 860188), (28, 737304), (31, 665952), (32, 645141), (42, 491536), (48, 430094), (56, 368652), (62, 332976), (84, 245768), (93, 221984), (96, 215047), (112, 184326), (124, 166488), (168, 122884), (186, 110992), (217, 95136), (224, 92163), (248, 83244), (336, 61442), (372, 55496), (434, 47568), (496, 41622), (651, 31712), (672, 30721), (744, 27748), (868, 23784), (991, 20832), (992, 20811), (1302, 15856), (1488, 13874), (1736, 11892), (1982, 10416), (2604, 7928), (2973, 6944), (2976, 6937), (3472, 5946), (3964, 5208)]