21750128

素因数分解:

$2^4\times {\mathrm{881}}^1\times {\mathrm{1543}}^1$

素因数の和:2432

約数の個数: 20

約数和(自身を含む): 42216048

約数和(自身を除く): 20465920

約数列:

[1, 2, 4, 8, 16, 881, 1543, 1762, 3086, 3524, 6172, 7048, 12344, 14096, 24688, 1359383, 2718766, 5437532, 10875064, 21750128]

約数ペア:

[(1, 21750128), (2, 10875064), (4, 5437532), (8, 2718766), (16, 1359383), (881, 24688), (1543, 14096), (1762, 12344), (3086, 7048), (3524, 6172)]