21420579

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{3533}}^1$

素因数の和:3626

約数の個数: 16

約数和(自身を含む): 29855232

約数和(自身を除く): 8434653

約数列:

[1, 3, 43, 47, 129, 141, 2021, 3533, 6063, 10599, 151919, 166051, 455757, 498153, 7140193, 21420579]

約数ペア:

[(1, 21420579), (3, 7140193), (43, 498153), (47, 455757), (129, 166051), (141, 151919), (2021, 10599), (3533, 6063)]