18471772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^2$

素因数の和:246

約数の個数: 36

約数和(自身を含む): 36337896

約数和(自身を除く): 17866124

約数列:

[1, 2, 4, 11, 22, 44, 53, 89, 106, 178, 212, 356, 583, 979, 1166, 1958, 2332, 3916, 4717, 7921, 9434, 15842, 18868, 31684, 51887, 87131, 103774, 174262, 207548, 348524, 419813, 839626, 1679252, 4617943, 9235886, 18471772]

約数ペア:

[(1, 18471772), (2, 9235886), (4, 4617943), (11, 1679252), (22, 839626), (44, 419813), (53, 348524), (89, 207548), (106, 174262), (178, 103774), (212, 87131), (356, 51887), (583, 31684), (979, 18868), (1166, 15842), (1958, 9434), (2332, 7921), (3916, 4717)]