19771927

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{541}}^1$

素因数の和:798

約数の個数: 16

約数和(自身を含む): 23726592

約数和(自身を除く): 3954665

約数列:

[1, 7, 23, 161, 227, 541, 1589, 3787, 5221, 12443, 36547, 87101, 122807, 859649, 2824561, 19771927]

約数ペア:

[(1, 19771927), (7, 2824561), (23, 859649), (161, 122807), (227, 87101), (541, 36547), (1589, 12443), (3787, 5221)]