20693043

素因数分解:

$3^3\times 7^2\times {\mathrm{15641}}^1$

素因数の和:15664

約数の個数: 24

約数和(自身を含む): 35663760

約数和(自身を除く): 14970717

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15641, 46923, 109487, 140769, 328461, 422307, 766409, 985383, 2299227, 2956149, 6897681, 20693043]

約数ペア:

[(1, 20693043), (3, 6897681), (7, 2956149), (9, 2299227), (21, 985383), (27, 766409), (49, 422307), (63, 328461), (147, 140769), (189, 109487), (441, 46923), (1323, 15641)]