25218215

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 33777744

約数和(自身を除く): 8559529

約数列:

[1, 5, 11, 55, 73, 121, 365, 571, 605, 803, 2855, 4015, 6281, 8833, 31405, 41683, 44165, 69091, 208415, 345455, 458513, 2292565, 5043643, 25218215]

約数ペア:

[(1, 25218215), (5, 5043643), (11, 2292565), (55, 458513), (73, 345455), (121, 208415), (365, 69091), (571, 44165), (605, 41683), (803, 31405), (2855, 8833), (4015, 6281)]