19965561

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4549}}^1$

素因数の和:4589

約数の個数: 32

約数和(自身を含む): 34944000

約数和(自身を除く): 14978439

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 209, 231, 399, 627, 1463, 4389, 4549, 13647, 31843, 50039, 86431, 95529, 150117, 259293, 350273, 605017, 950741, 1050819, 1815051, 2852223, 6655187, 19965561]

約数ペア:

[(1, 19965561), (3, 6655187), (7, 2852223), (11, 1815051), (19, 1050819), (21, 950741), (33, 605017), (57, 350273), (77, 259293), (133, 150117), (209, 95529), (231, 86431), (399, 50039), (627, 31843), (1463, 13647), (4389, 4549)]