21565489

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{359}}^1$

素因数の和:540

約数の個数: 16

約数和(自身を含む): 24330240

約数和(自身を除く): 2764751

約数列:

[1, 11, 43, 127, 359, 473, 1397, 3949, 5461, 15437, 45593, 60071, 169807, 501523, 1960499, 21565489]

約数ペア:

[(1, 21565489), (11, 1960499), (43, 501523), (127, 169807), (359, 60071), (473, 45593), (1397, 15437), (3949, 5461)]