20490393

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{829}}^1$

素因数の和:957

約数の個数: 32

約数和(自身を含む): 34421760

約数和(自身を除く): 13931367

約数列:

[1, 3, 7, 11, 21, 33, 77, 107, 231, 321, 749, 829, 1177, 2247, 2487, 3531, 5803, 8239, 9119, 17409, 24717, 27357, 63833, 88703, 191499, 266109, 620921, 975733, 1862763, 2927199, 6830131, 20490393]

約数ペア:

[(1, 20490393), (3, 6830131), (7, 2927199), (11, 1862763), (21, 975733), (33, 620921), (77, 266109), (107, 191499), (231, 88703), (321, 63833), (749, 27357), (829, 24717), (1177, 17409), (2247, 9119), (2487, 8239), (3531, 5803)]