19380053

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 26099712

約数和(自身を除く): 6719659

約数列:

[1, 7, 11, 23, 31, 77, 161, 217, 253, 341, 353, 713, 1771, 2387, 2471, 3883, 4991, 7843, 8119, 10943, 27181, 54901, 56833, 76601, 89309, 120373, 251689, 625163, 842611, 1761823, 2768579, 19380053]

約数ペア:

[(1, 19380053), (7, 2768579), (11, 1761823), (23, 842611), (31, 625163), (77, 251689), (161, 120373), (217, 89309), (253, 76601), (341, 56833), (353, 54901), (713, 27181), (1771, 10943), (2387, 8119), (2471, 7843), (3883, 4991)]