19903737

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23117}}^1$

素因数の和:23168

約数の個数: 16

約数和(自身を含む): 31070592

約数和(自身を除く): 11166855

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 23117, 69351, 161819, 485457, 947797, 2843391, 6634579, 19903737]

約数ペア:

[(1, 19903737), (3, 6634579), (7, 2843391), (21, 947797), (41, 485457), (123, 161819), (287, 69351), (861, 23117)]