20786559

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1\times {\mathrm{383}}^1$

素因数の和:694

約数の個数: 16

約数和(自身を含む): 28262400

約数和(自身を除く): 7475841

約数列:

[1, 3, 79, 229, 237, 383, 687, 1149, 18091, 30257, 54273, 87707, 90771, 263121, 6928853, 20786559]

約数ペア:

[(1, 20786559), (3, 6928853), (79, 263121), (229, 90771), (237, 87707), (383, 54273), (687, 30257), (1149, 18091)]