21113774

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{2029}}^1$

素因数の和:2096

約数の個数: 24

約数和(自身を含む): 35638680

約数和(自身を除く): 14524906

約数列:

[1, 2, 11, 22, 43, 86, 121, 242, 473, 946, 2029, 4058, 5203, 10406, 22319, 44638, 87247, 174494, 245509, 491018, 959717, 1919434, 10556887, 21113774]

約数ペア:

[(1, 21113774), (2, 10556887), (11, 1919434), (22, 959717), (43, 491018), (86, 245509), (121, 174494), (242, 87247), (473, 44638), (946, 22319), (2029, 10406), (4058, 5203)]