20787009985

素因数分解:

$5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{2814761}}^1$

素因数の和:2814984

約数の個数: 16

約数和(自身を含む): 28643018112

約数和(自身を除く): 7856008127

約数列:

[1, 5, 7, 35, 211, 1055, 1477, 7385, 2814761, 14073805, 19703327, 98516635, 593914571, 2969572855, 4157401997, 20787009985]

約数ペア:

[(1, 20787009985), (5, 4157401997), (7, 2969572855), (35, 593914571), (211, 98516635), (1055, 19703327), (1477, 14073805), (7385, 2814761)]