18498039

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 31190400

約数和(自身を除く): 12692361

約数列:

[1, 3, 7, 19, 21, 37, 49, 57, 111, 133, 147, 179, 259, 399, 537, 703, 777, 931, 1253, 1813, 2109, 2793, 3401, 3759, 4921, 5439, 6623, 8771, 10203, 14763, 19869, 23807, 26313, 34447, 46361, 71421, 103341, 125837, 139083, 166649, 324527, 377511, 499947, 880859, 973581, 2642577, 6166013, 18498039]

約数ペア:

[(1, 18498039), (3, 6166013), (7, 2642577), (19, 973581), (21, 880859), (37, 499947), (49, 377511), (57, 324527), (111, 166649), (133, 139083), (147, 125837), (179, 103341), (259, 71421), (399, 46361), (537, 34447), (703, 26313), (777, 23807), (931, 19869), (1253, 14763), (1813, 10203), (2109, 8771), (2793, 6623), (3401, 5439), (3759, 4921)]