20618116

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3821}}^1$

素因数の和:3915

約数の個数: 24

約数和(自身を含む): 38525760

約数和(自身を除く): 17907644

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 2698, 3821, 5396, 7642, 15284, 72599, 145198, 271291, 290396, 542582, 1085164, 5154529, 10309058, 20618116]

約数ペア:

[(1, 20618116), (2, 10309058), (4, 5154529), (19, 1085164), (38, 542582), (71, 290396), (76, 271291), (142, 145198), (284, 72599), (1349, 15284), (2698, 7642), (3821, 5396)]