21974615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{7193}}^1$

素因数の和:7258

約数の個数: 16

約数和(自身を含む): 29006208

約数和(自身を除く): 7031593

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 7193, 35965, 93509, 338071, 467545, 1690355, 4394923, 21974615]

約数ペア:

[(1, 21974615), (5, 4394923), (13, 1690355), (47, 467545), (65, 338071), (235, 93509), (611, 35965), (3055, 7193)]