20830663

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1187}}^1$

素因数の和:1326

約数の個数: 16

約数和(自身を含む): 25090560

約数和(自身を除く): 4259897

約数列:

[1, 7, 23, 109, 161, 763, 1187, 2507, 8309, 17549, 27301, 129383, 191107, 905681, 2975809, 20830663]

約数ペア:

[(1, 20830663), (7, 2975809), (23, 905681), (109, 191107), (161, 129383), (763, 27301), (1187, 17549), (2507, 8309)]