20451909

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{4679}}^1$

素因数の和:4760

約数の個数: 16

約数和(自身を含む): 28753920

約数和(自身を除く): 8302011

約数列:

[1, 3, 31, 47, 93, 141, 1457, 4371, 4679, 14037, 145049, 219913, 435147, 659739, 6817303, 20451909]

約数ペア:

[(1, 20451909), (3, 6817303), (31, 659739), (47, 435147), (93, 219913), (141, 145049), (1457, 14037), (4371, 4679)]