20105883

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{18773}}^1$

素因数の和:18803

約数の個数: 24

約数和(自身を含む): 35144928

約数和(自身を除く): 15039045

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 18773, 56319, 131411, 168957, 319141, 394233, 957423, 1182699, 2233987, 2872269, 6701961, 20105883]

約数ペア:

[(1, 20105883), (3, 6701961), (7, 2872269), (9, 2233987), (17, 1182699), (21, 957423), (51, 394233), (63, 319141), (119, 168957), (153, 131411), (357, 56319), (1071, 18773)]