19181701

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{10831}}^1$

素因数の和:10872

約数の個数: 16

約数和(自身を含む): 24956928

約数和(自身を除く): 5775227

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 10831, 75817, 119141, 249113, 833987, 1743791, 2740243, 19181701]

約数ペア:

[(1, 19181701), (7, 2740243), (11, 1743791), (23, 833987), (77, 249113), (161, 119141), (253, 75817), (1771, 10831)]