21521951

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{331}}^1$

素因数の和:622

約数の個数: 16

約数和(自身を含む): 24668928

約数和(自身を除く): 3146977

約数列:

[1, 11, 23, 253, 257, 331, 2827, 3641, 5911, 7613, 65021, 83743, 85067, 935737, 1956541, 21521951]

約数ペア:

[(1, 21521951), (11, 1956541), (23, 935737), (253, 85067), (257, 83743), (331, 65021), (2827, 7613), (3641, 5911)]