21938720

素因数分解:

$2^5\times 5^1\times {\mathrm{137117}}^1$

素因数の和:137132

約数の個数: 24

約数和(自身を含む): 51830604

約数和(自身を除く): 29891884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 137117, 274234, 548468, 685585, 1096936, 1371170, 2193872, 2742340, 4387744, 5484680, 10969360, 21938720]

約数ペア:

[(1, 21938720), (2, 10969360), (4, 5484680), (5, 4387744), (8, 2742340), (10, 2193872), (16, 1371170), (20, 1096936), (32, 685585), (40, 548468), (80, 274234), (160, 137117)]