21713945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{3833}}^1$

素因数の和:3952

約数の個数: 16

約数和(自身を含む): 28708992

約数和(自身を除く): 6995047

約数列:

[1, 5, 11, 55, 103, 515, 1133, 3833, 5665, 19165, 42163, 210815, 394799, 1973995, 4342789, 21713945]

約数ペア:

[(1, 21713945), (5, 4342789), (11, 1973995), (55, 394799), (103, 210815), (515, 42163), (1133, 19165), (3833, 5665)]