21871335

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{13627}}^1$

素因数の和:13742

約数の個数: 16

約数和(自身を含む): 35323776

約数和(自身を除く): 13452441

約数列:

[1, 3, 5, 15, 107, 321, 535, 1605, 13627, 40881, 68135, 204405, 1458089, 4374267, 7290445, 21871335]

約数ペア:

[(1, 21871335), (3, 7290445), (5, 4374267), (15, 1458089), (107, 204405), (321, 68135), (535, 40881), (1605, 13627)]