211153855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4261}}^1$

素因数の和:4347

約数の個数: 32

約数和(自身を含む): 298271808

約数和(自身を除く): 87117953

約数列:

[1, 5, 11, 17, 53, 55, 85, 187, 265, 583, 901, 935, 2915, 4261, 4505, 9911, 21305, 46871, 49555, 72437, 225833, 234355, 362185, 796807, 1129165, 2484163, 3839161, 3984035, 12420815, 19195805, 42230771, 211153855]

約数ペア:

[(1, 211153855), (5, 42230771), (11, 19195805), (17, 12420815), (53, 3984035), (55, 3839161), (85, 2484163), (187, 1129165), (265, 796807), (583, 362185), (901, 234355), (935, 225833), (2915, 72437), (4261, 49555), (4505, 46871), (9911, 21305)]