20402151

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{88321}}^1$

素因数の和:88342

約数の個数: 16

約数和(自身を含む): 33915648

約数和(自身を除く): 13513497

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 88321, 264963, 618247, 971531, 1854741, 2914593, 6800717, 20402151]

約数ペア:

[(1, 20402151), (3, 6800717), (7, 2914593), (11, 1854741), (21, 971531), (33, 618247), (77, 264963), (231, 88321)]