20931955

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16547}}^1$

素因数の和:16586

約数の個数: 16

約数和(自身を含む): 28594944

約数和(自身を除く): 7662989

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16547, 82735, 182017, 380581, 910085, 1902905, 4186391, 20931955]

約数ペア:

[(1, 20931955), (5, 4186391), (11, 1902905), (23, 910085), (55, 380581), (115, 182017), (253, 82735), (1265, 16547)]