28181626

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{1153}}^1$

素因数の和:1278

約数の個数: 24

約数和(自身を含む): 46965492

約数和(自身を除く): 18783866

約数列:

[1, 2, 11, 22, 101, 121, 202, 242, 1111, 1153, 2222, 2306, 12221, 12683, 24442, 25366, 116453, 139513, 232906, 279026, 1280983, 2561966, 14090813, 28181626]

約数ペア:

[(1, 28181626), (2, 14090813), (11, 2561966), (22, 1280983), (101, 279026), (121, 232906), (202, 139513), (242, 116453), (1111, 25366), (1153, 24442), (2222, 12683), (2306, 12221)]