20966316

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 57513456

約数和(自身を除く): 36547140

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 181, 196, 197, 294, 362, 394, 543, 588, 591, 724, 788, 1086, 1182, 1267, 1379, 2172, 2364, 2534, 2758, 3801, 4137, 5068, 5516, 7602, 8274, 8869, 9653, 15204, 16548, 17738, 19306, 26607, 28959, 35476, 35657, 38612, 53214, 57918, 71314, 106428, 106971, 115836, 142628, 213942, 249599, 427884, 499198, 748797, 998396, 1497594, 1747193, 2995188, 3494386, 5241579, 6988772, 10483158, 20966316]

約数ペア:

[(1, 20966316), (2, 10483158), (3, 6988772), (4, 5241579), (6, 3494386), (7, 2995188), (12, 1747193), (14, 1497594), (21, 998396), (28, 748797), (42, 499198), (49, 427884), (84, 249599), (98, 213942), (147, 142628), (181, 115836), (196, 106971), (197, 106428), (294, 71314), (362, 57918), (394, 53214), (543, 38612), (588, 35657), (591, 35476), (724, 28959), (788, 26607), (1086, 19306), (1182, 17738), (1267, 16548), (1379, 15204), (2172, 9653), (2364, 8869), (2534, 8274), (2758, 7602), (3801, 5516), (4137, 5068)]