208047861

素因数分解:

$3^2\times 7^1\times {\mathrm{487}}^1\times {\mathrm{6781}}^1$

素因数の和:7281

約数の個数: 24

約数和(自身を含む): 344200064

約数和(自身を除く): 136152203

約数列:

[1, 3, 7, 9, 21, 63, 487, 1461, 3409, 4383, 6781, 10227, 20343, 30681, 47467, 61029, 142401, 427203, 3302347, 9907041, 23116429, 29721123, 69349287, 208047861]

約数ペア:

[(1, 208047861), (3, 69349287), (7, 29721123), (9, 23116429), (21, 9907041), (63, 3302347), (487, 427203), (1461, 142401), (3409, 61029), (4383, 47467), (6781, 30681), (10227, 20343)]