12821795

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{9901}}^1$

素因数の和:9950

約数の個数: 16

約数和(自身を含む): 18061248

約数和(自身を除く): 5239453

約数列:

[1, 5, 7, 35, 37, 185, 259, 1295, 9901, 49505, 69307, 346535, 366337, 1831685, 2564359, 12821795]

約数ペア:

[(1, 12821795), (5, 2564359), (7, 1831685), (35, 366337), (37, 346535), (185, 69307), (259, 49505), (1295, 9901)]