20107997

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1483}}^1$

素因数の和:1652

約数の個数: 16

約数和(自身を含む): 24931200

約数和(自身を除く): 4823203

約数列:

[1, 7, 13, 91, 149, 1043, 1483, 1937, 10381, 13559, 19279, 134953, 220967, 1546769, 2872571, 20107997]

約数ペア:

[(1, 20107997), (7, 2872571), (13, 1546769), (91, 220967), (149, 134953), (1043, 19279), (1483, 13559), (1937, 10381)]