20431327

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{1031}}^1$

素因数の和:1206

約数の個数: 16

約数和(自身を含む): 24768000

約数和(自身を除く): 4336673

約数列:

[1, 7, 19, 133, 149, 1031, 1043, 2831, 7217, 19589, 19817, 137123, 153619, 1075333, 2918761, 20431327]

約数ペア:

[(1, 20431327), (7, 2918761), (19, 1075333), (133, 153619), (149, 137123), (1031, 19817), (1043, 19589), (2831, 7217)]