18983713

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{2381}}^1$

素因数の和:2472

約数の個数: 16

約数和(自身を含む): 23324544

約数和(自身を除く): 4340831

約数列:

[1, 7, 17, 67, 119, 469, 1139, 2381, 7973, 16667, 40477, 159527, 283339, 1116689, 2711959, 18983713]

約数ペア:

[(1, 18983713), (7, 2711959), (17, 1116689), (67, 283339), (119, 159527), (469, 40477), (1139, 16667), (2381, 7973)]