28775691

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2837}}^1$

素因数の和:2880

約数の個数: 36

約数和(自身を含む): 50470992

約数和(自身を除く): 21695301

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 2837, 3381, 8511, 10143, 19859, 25533, 59577, 65251, 139013, 178731, 195753, 417039, 456757, 587259, 1251117, 1370271, 3197299, 4110813, 9591897, 28775691]

約数ペア:

[(1, 28775691), (3, 9591897), (7, 4110813), (9, 3197299), (21, 1370271), (23, 1251117), (49, 587259), (63, 456757), (69, 417039), (147, 195753), (161, 178731), (207, 139013), (441, 65251), (483, 59577), (1127, 25533), (1449, 19859), (2837, 10143), (3381, 8511)]