20871302416

素因数分解:

$2^4\times {\mathrm{2551}}^1\times {\mathrm{511351}}^1$

素因数の和:513910

約数の個数: 20

約数和(自身を含む): 40454079424

約数和(自身を除く): 19582777008

約数列:

[1, 2, 4, 8, 16, 2551, 5102, 10204, 20408, 40816, 511351, 1022702, 2045404, 4090808, 8181616, 1304456401, 2608912802, 5217825604, 10435651208, 20871302416]

約数ペア:

[(1, 20871302416), (2, 10435651208), (4, 5217825604), (8, 2608912802), (16, 1304456401), (2551, 8181616), (5102, 4090808), (10204, 2045404), (20408, 1022702), (40816, 511351)]