21402896

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43151}}^1$

素因数の和:43190

約数の個数: 20

約数和(自身を含む): 42806784

約数和(自身を除く): 21403888

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 43151, 86302, 172604, 345208, 690416, 1337681, 2675362, 5350724, 10701448, 21402896]

約数ペア:

[(1, 21402896), (2, 10701448), (4, 5350724), (8, 2675362), (16, 1337681), (31, 690416), (62, 345208), (124, 172604), (248, 86302), (496, 43151)]