20816376

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{571}}^1$

素因数の和:625

約数の個数: 96

約数和(自身を含む): 62599680

約数和(自身を除く): 41783304

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 49, 56, 62, 84, 93, 98, 124, 147, 168, 186, 196, 217, 248, 294, 372, 392, 434, 571, 588, 651, 744, 868, 1142, 1176, 1302, 1519, 1713, 1736, 2284, 2604, 3038, 3426, 3997, 4557, 4568, 5208, 6076, 6852, 7994, 9114, 11991, 12152, 13704, 15988, 17701, 18228, 23982, 27979, 31976, 35402, 36456, 47964, 53103, 55958, 70804, 83937, 95928, 106206, 111916, 123907, 141608, 167874, 212412, 223832, 247814, 335748, 371721, 424824, 495628, 671496, 743442, 867349, 991256, 1486884, 1734698, 2602047, 2973768, 3469396, 5204094, 6938792, 10408188, 20816376]

約数ペア:

[(1, 20816376), (2, 10408188), (3, 6938792), (4, 5204094), (6, 3469396), (7, 2973768), (8, 2602047), (12, 1734698), (14, 1486884), (21, 991256), (24, 867349), (28, 743442), (31, 671496), (42, 495628), (49, 424824), (56, 371721), (62, 335748), (84, 247814), (93, 223832), (98, 212412), (124, 167874), (147, 141608), (168, 123907), (186, 111916), (196, 106206), (217, 95928), (248, 83937), (294, 70804), (372, 55958), (392, 53103), (434, 47964), (571, 36456), (588, 35402), (651, 31976), (744, 27979), (868, 23982), (1142, 18228), (1176, 17701), (1302, 15988), (1519, 13704), (1713, 12152), (1736, 11991), (2284, 9114), (2604, 7994), (3038, 6852), (3426, 6076), (3997, 5208), (4557, 4568)]