21801123

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47497}}^1$

素因数の和:47523

約数の個数: 16

約数和(自身を含む): 34198560

約数和(自身を除く): 12397437

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 47497, 142491, 427473, 807449, 1282419, 2422347, 7267041, 21801123]

約数ペア:

[(1, 21801123), (3, 7267041), (9, 2422347), (17, 1282419), (27, 807449), (51, 427473), (153, 142491), (459, 47497)]