18878883

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{653}}^1$

素因数の和:1098

約数の個数: 16

約数和(自身を含む): 26369280

約数和(自身を除く): 7490397

約数列:

[1, 3, 23, 69, 419, 653, 1257, 1959, 9637, 15019, 28911, 45057, 273607, 820821, 6292961, 18878883]

約数ペア:

[(1, 18878883), (3, 6292961), (23, 820821), (69, 273607), (419, 45057), (653, 28911), (1257, 15019), (1959, 9637)]