20803430396

素因数分解:

$2^2\times 7^2\times {\mathrm{106139951}}^1$

素因数の和:106139969

約数の個数: 18

約数和(自身を含む): 42349840848

約数和(自身を除く): 21546410452

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 106139951, 212279902, 424559804, 742979657, 1485959314, 2971918628, 5200857599, 10401715198, 20803430396]

約数ペア:

[(1, 20803430396), (2, 10401715198), (4, 5200857599), (7, 2971918628), (14, 1485959314), (28, 742979657), (49, 424559804), (98, 212279902), (196, 106139951)]