1809199

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:310

約数の個数: 16

約数和(自身を含む): 2222080

約数和(自身を除く): 412881

約数列:

[1, 7, 19, 61, 133, 223, 427, 1159, 1561, 4237, 8113, 13603, 29659, 95221, 258457, 1809199]

約数ペア:

[(1, 1809199), (7, 258457), (19, 95221), (61, 29659), (133, 13603), (223, 8113), (427, 4237), (1159, 1561)]