21990347877

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{3877}}^1\times {\mathrm{43969}}^1$

素因数の和:47892

約数の個数: 16

約数和(自身を含む): 30010756160

約数和(自身を除く): 8020408283

約数列:

[1, 3, 43, 129, 3877, 11631, 43969, 131907, 166711, 500133, 1890667, 5672001, 170467813, 511403439, 7330115959, 21990347877]

約数ペア:

[(1, 21990347877), (3, 7330115959), (43, 511403439), (129, 170467813), (3877, 5672001), (11631, 1890667), (43969, 500133), (131907, 166711)]