18620409

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{641}}^1$

素因数の和:1088

約数の個数: 16

約数和(自身を含む): 26008704

約数和(自身を除く): 7388295

約数列:

[1, 3, 23, 69, 421, 641, 1263, 1923, 9683, 14743, 29049, 44229, 269861, 809583, 6206803, 18620409]

約数ペア:

[(1, 18620409), (3, 6206803), (23, 809583), (69, 269861), (421, 44229), (641, 29049), (1263, 14743), (1923, 9683)]