18740954

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:398

約数の個数: 24

約数和(自身を含む): 30079188

約数和(自身を除く): 11338234

約数列:

[1, 2, 19, 38, 101, 202, 257, 361, 514, 722, 1919, 3838, 4883, 9766, 25957, 36461, 51914, 72922, 92777, 185554, 493183, 986366, 9370477, 18740954]

約数ペア:

[(1, 18740954), (2, 9370477), (19, 986366), (38, 493183), (101, 185554), (202, 92777), (257, 72922), (361, 51914), (514, 36461), (722, 25957), (1919, 9766), (3838, 4883)]