20147931

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{743}}^1$

素因数の和:903

約数の個数: 24

約数和(自身を含む): 30640896

約数和(自身を除く): 10492965

約数列:

[1, 3, 9, 23, 69, 131, 207, 393, 743, 1179, 2229, 3013, 6687, 9039, 17089, 27117, 51267, 97333, 153801, 291999, 875997, 2238659, 6715977, 20147931]

約数ペア:

[(1, 20147931), (3, 6715977), (9, 2238659), (23, 875997), (69, 291999), (131, 153801), (207, 97333), (393, 51267), (743, 27117), (1179, 17089), (2229, 9039), (3013, 6687)]