19628665

素因数分解:

$5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{709}}^1$

素因数の和:841

約数の個数: 24

約数和(自身を含む): 27681480

約数和(自身を除く): 8052815

約数列:

[1, 5, 7, 35, 49, 113, 245, 565, 709, 791, 3545, 3955, 4963, 5537, 24815, 27685, 34741, 80117, 173705, 400585, 560819, 2804095, 3925733, 19628665]

約数ペア:

[(1, 19628665), (5, 3925733), (7, 2804095), (35, 560819), (49, 400585), (113, 173705), (245, 80117), (565, 34741), (709, 27685), (791, 24815), (3545, 5537), (3955, 4963)]