21306032

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7121}}^1$

素因数の和:7157

約数の個数: 40

約数和(自身を含む): 47688912

約数和(自身を除く): 26382880

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 7121, 14242, 28484, 56968, 78331, 113936, 121057, 156662, 242114, 313324, 484228, 626648, 968456, 1253296, 1331627, 1936912, 2663254, 5326508, 10653016, 21306032]

約数ペア:

[(1, 21306032), (2, 10653016), (4, 5326508), (8, 2663254), (11, 1936912), (16, 1331627), (17, 1253296), (22, 968456), (34, 626648), (44, 484228), (68, 313324), (88, 242114), (136, 156662), (176, 121057), (187, 113936), (272, 78331), (374, 56968), (748, 28484), (1496, 14242), (2992, 7121)]