28711011

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{11489}}^1$

素因数の和:11523

約数の個数: 24

約数和(自身を含む): 47154960

約数和(自身を除く): 18443949

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 11489, 34467, 80423, 195313, 241269, 562961, 585939, 1367191, 1688883, 4101573, 9570337, 28711011]

約数ペア:

[(1, 28711011), (3, 9570337), (7, 4101573), (17, 1688883), (21, 1367191), (49, 585939), (51, 562961), (119, 241269), (147, 195313), (357, 80423), (833, 34467), (2499, 11489)]