18880815

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{54727}}^1$

素因数の和:54758

約数の個数: 16

約数和(自身を含む): 31523328

約数和(自身を除く): 12642513

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 54727, 164181, 273635, 820905, 1258721, 3776163, 6293605, 18880815]

約数ペア:

[(1, 18880815), (3, 6293605), (5, 3776163), (15, 1258721), (23, 820905), (69, 273635), (115, 164181), (345, 54727)]