18740409

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{12671}}^1$

素因数の和:12720

約数の個数: 16

約数和(自身を含む): 27371520

約数和(自身を除く): 8631111

約数列:

[1, 3, 17, 29, 51, 87, 493, 1479, 12671, 38013, 215407, 367459, 646221, 1102377, 6246803, 18740409]

約数ペア:

[(1, 18740409), (3, 6246803), (17, 1102377), (29, 646221), (51, 367459), (87, 215407), (493, 38013), (1479, 12671)]