142590021

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157907}}^1$

素因数の和:157960

約数の個数: 16

約数和(自身を含む): 222334464

約数和(自身を除く): 79744443

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 157907, 473721, 1105349, 3316047, 6790001, 20370003, 47530007, 142590021]

約数ペア:

[(1, 142590021), (3, 47530007), (7, 20370003), (21, 6790001), (43, 3316047), (129, 1105349), (301, 473721), (903, 157907)]