18989548

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{1289}}^1$

素因数の和:1449

約数の個数: 24

約数和(自身を含む): 34675200

約数和(自身を除く): 15685652

約数列:

[1, 2, 4, 29, 58, 116, 127, 254, 508, 1289, 2578, 3683, 5156, 7366, 14732, 37381, 74762, 149524, 163703, 327406, 654812, 4747387, 9494774, 18989548]

約数ペア:

[(1, 18989548), (2, 9494774), (4, 4747387), (29, 654812), (58, 327406), (116, 163703), (127, 149524), (254, 74762), (508, 37381), (1289, 14732), (2578, 7366), (3683, 5156)]