21301544

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:554

約数の個数: 64

約数和(自身を含む): 47822400

約数和(自身を除く): 26520856

約数列:

[1, 2, 4, 8, 11, 17, 22, 29, 34, 44, 58, 68, 88, 116, 136, 187, 232, 319, 374, 491, 493, 638, 748, 982, 986, 1276, 1496, 1964, 1972, 2552, 3928, 3944, 5401, 5423, 8347, 10802, 10846, 14239, 16694, 21604, 21692, 28478, 33388, 43208, 43384, 56956, 66776, 91817, 113912, 156629, 183634, 242063, 313258, 367268, 484126, 626516, 734536, 968252, 1253032, 1936504, 2662693, 5325386, 10650772, 21301544]

約数ペア:

[(1, 21301544), (2, 10650772), (4, 5325386), (8, 2662693), (11, 1936504), (17, 1253032), (22, 968252), (29, 734536), (34, 626516), (44, 484126), (58, 367268), (68, 313258), (88, 242063), (116, 183634), (136, 156629), (187, 113912), (232, 91817), (319, 66776), (374, 56956), (491, 43384), (493, 43208), (638, 33388), (748, 28478), (982, 21692), (986, 21604), (1276, 16694), (1496, 14239), (1964, 10846), (1972, 10802), (2552, 8347), (3928, 5423), (3944, 5401)]