21375365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{8269}}^1$

素因数の和:8332

約数の個数: 16

約数和(自身を含む): 28581120

約数和(自身を除く): 7205755

約数列:

[1, 5, 11, 47, 55, 235, 517, 2585, 8269, 41345, 90959, 388643, 454795, 1943215, 4275073, 21375365]

約数ペア:

[(1, 21375365), (5, 4275073), (11, 1943215), (47, 454795), (55, 388643), (235, 90959), (517, 41345), (2585, 8269)]