20402409

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{2069}}^1$

素因数の和:2264

約数の個数: 16

約数和(自身を含む): 28814400

約数和(自身を除く): 8411991

約数列:

[1, 3, 19, 57, 173, 519, 2069, 3287, 6207, 9861, 39311, 117933, 357937, 1073811, 6800803, 20402409]

約数ペア:

[(1, 20402409), (3, 6800803), (19, 1073811), (57, 357937), (173, 117933), (519, 39311), (2069, 9861), (3287, 6207)]