20281772

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19577}}^1$

素因数の和:19625

約数の個数: 24

約数和(自身を含む): 41661984

約数和(自身を除く): 21380212

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 19577, 39154, 78308, 137039, 274078, 548156, 724349, 1448698, 2897396, 5070443, 10140886, 20281772]

約数ペア:

[(1, 20281772), (2, 10140886), (4, 5070443), (7, 2897396), (14, 1448698), (28, 724349), (37, 548156), (74, 274078), (148, 137039), (259, 78308), (518, 39154), (1036, 19577)]