16978225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{577}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 23221728

約数和(自身を除く): 6243503

約数列:

[1, 5, 11, 25, 55, 107, 275, 535, 577, 1177, 2675, 2885, 5885, 6347, 14425, 29425, 31735, 61739, 158675, 308695, 679129, 1543475, 3395645, 16978225]

約数ペア:

[(1, 16978225), (5, 3395645), (11, 1543475), (25, 679129), (55, 308695), (107, 158675), (275, 61739), (535, 31735), (577, 29425), (1177, 14425), (2675, 6347), (2885, 5885)]