15121989

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{383}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 22643712

約数和(自身を除く): 7521723

約数列:

[1, 3, 9, 41, 107, 123, 321, 369, 383, 963, 1149, 3447, 4387, 13161, 15703, 39483, 40981, 47109, 122943, 141327, 368829, 1680221, 5040663, 15121989]

約数ペア:

[(1, 15121989), (3, 5040663), (9, 1680221), (41, 368829), (107, 141327), (123, 122943), (321, 47109), (369, 40981), (383, 39483), (963, 15703), (1149, 13161), (3447, 4387)]