18708039

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{12911}}^1$

素因数の和:12947

約数の個数: 24

約数和(自身を含む): 32228352

約数和(自身を除く): 13520313

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 12911, 38733, 90377, 116199, 271131, 296953, 813393, 890859, 2078671, 2672577, 6236013, 18708039]

約数ペア:

[(1, 18708039), (3, 6236013), (7, 2672577), (9, 2078671), (21, 890859), (23, 813393), (63, 296953), (69, 271131), (161, 116199), (207, 90377), (483, 38733), (1449, 12911)]