21000254

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 35735040

約数和(自身を除く): 14734786

約数列:

[1, 2, 11, 22, 43, 79, 86, 158, 281, 473, 562, 869, 946, 1738, 3091, 3397, 6182, 6794, 12083, 22199, 24166, 37367, 44398, 74734, 132913, 244189, 265826, 488378, 954557, 1909114, 10500127, 21000254]

約数ペア:

[(1, 21000254), (2, 10500127), (11, 1909114), (22, 954557), (43, 488378), (79, 265826), (86, 244189), (158, 132913), (281, 74734), (473, 44398), (562, 37367), (869, 24166), (946, 22199), (1738, 12083), (3091, 6794), (3397, 6182)]