21235335

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:176

約数の個数: 64

約数和(自身を含む): 39384576

約数和(自身を除く): 18149241

約数列:

[1, 3, 5, 11, 15, 33, 41, 43, 55, 73, 123, 129, 165, 205, 215, 219, 365, 451, 473, 615, 645, 803, 1095, 1353, 1419, 1763, 2255, 2365, 2409, 2993, 3139, 4015, 5289, 6765, 7095, 8815, 8979, 9417, 12045, 14965, 15695, 19393, 26445, 32923, 34529, 44895, 47085, 58179, 96965, 98769, 103587, 128699, 164615, 172645, 290895, 386097, 493845, 517935, 643495, 1415689, 1930485, 4247067, 7078445, 21235335]

約数ペア:

[(1, 21235335), (3, 7078445), (5, 4247067), (11, 1930485), (15, 1415689), (33, 643495), (41, 517935), (43, 493845), (55, 386097), (73, 290895), (123, 172645), (129, 164615), (165, 128699), (205, 103587), (215, 98769), (219, 96965), (365, 58179), (451, 47085), (473, 44895), (615, 34529), (645, 32923), (803, 26445), (1095, 19393), (1353, 15695), (1419, 14965), (1763, 12045), (2255, 9417), (2365, 8979), (2409, 8815), (2993, 7095), (3139, 6765), (4015, 5289)]