20804992

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12503}}^1$

素因数の和:12530

約数の個数: 32

約数和(自身を含む): 44639280

約数和(自身を除く): 23834288

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12503, 25006, 50012, 100024, 162539, 200048, 325078, 400096, 650156, 800192, 1300312, 1600384, 2600624, 5201248, 10402496, 20804992]

約数ペア:

[(1, 20804992), (2, 10402496), (4, 5201248), (8, 2600624), (13, 1600384), (16, 1300312), (26, 800192), (32, 650156), (52, 400096), (64, 325078), (104, 200048), (128, 162539), (208, 100024), (416, 50012), (832, 25006), (1664, 12503)]