21419748

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{977}}^1$

素因数の和:1026

約数の個数: 96

約数和(自身を含む): 65721600

約数和(自身を除く): 44301852

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 29, 36, 42, 54, 58, 63, 84, 87, 108, 116, 126, 174, 189, 203, 252, 261, 348, 378, 406, 522, 609, 756, 783, 812, 977, 1044, 1218, 1566, 1827, 1954, 2436, 2931, 3132, 3654, 3908, 5481, 5862, 6839, 7308, 8793, 10962, 11724, 13678, 17586, 20517, 21924, 26379, 27356, 28333, 35172, 41034, 52758, 56666, 61551, 82068, 84999, 105516, 113332, 123102, 169998, 184653, 198331, 246204, 254997, 339996, 369306, 396662, 509994, 594993, 738612, 764991, 793324, 1019988, 1189986, 1529982, 1784979, 2379972, 3059964, 3569958, 5354937, 7139916, 10709874, 21419748]

約数ペア:

[(1, 21419748), (2, 10709874), (3, 7139916), (4, 5354937), (6, 3569958), (7, 3059964), (9, 2379972), (12, 1784979), (14, 1529982), (18, 1189986), (21, 1019988), (27, 793324), (28, 764991), (29, 738612), (36, 594993), (42, 509994), (54, 396662), (58, 369306), (63, 339996), (84, 254997), (87, 246204), (108, 198331), (116, 184653), (126, 169998), (174, 123102), (189, 113332), (203, 105516), (252, 84999), (261, 82068), (348, 61551), (378, 56666), (406, 52758), (522, 41034), (609, 35172), (756, 28333), (783, 27356), (812, 26379), (977, 21924), (1044, 20517), (1218, 17586), (1566, 13678), (1827, 11724), (1954, 10962), (2436, 8793), (2931, 7308), (3132, 6839), (3654, 5862), (3908, 5481)]