80827551

素因数分解:

$3^4\times 7^1\times {\mathrm{142553}}^1$

素因数の和:142572

約数の個数: 20

約数和(自身を含む): 137992272

約数和(自身を除く): 57164721

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 142553, 427659, 997871, 1282977, 2993613, 3848931, 8980839, 11546793, 26942517, 80827551]

約数ペア:

[(1, 80827551), (3, 26942517), (7, 11546793), (9, 8980839), (21, 3848931), (27, 2993613), (63, 1282977), (81, 997871), (189, 427659), (567, 142553)]