21808768

素因数分解:

$2^7\times {\mathrm{67}}^1\times {\mathrm{2543}}^1$

素因数の和:2624

約数の個数: 32

約数和(自身を含む): 44112960

約数和(自身を除く): 22304192

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 268, 536, 1072, 2144, 2543, 4288, 5086, 8576, 10172, 20344, 40688, 81376, 162752, 170381, 325504, 340762, 681524, 1363048, 2726096, 5452192, 10904384, 21808768]

約数ペア:

[(1, 21808768), (2, 10904384), (4, 5452192), (8, 2726096), (16, 1363048), (32, 681524), (64, 340762), (67, 325504), (128, 170381), (134, 162752), (268, 81376), (536, 40688), (1072, 20344), (2144, 10172), (2543, 8576), (4288, 5086)]