20871772024

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{4909}}^1\times {\mathrm{4057}}^1$

素因数の和:9103

約数の個数: 32

約数和(自身を含む): 39451064400

約数和(自身を除く): 18579292376

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 4057, 4909, 8114, 9818, 16228, 19636, 32456, 39272, 531467, 643079, 1062934, 1286158, 2125868, 2572316, 4251736, 5144632, 19915813, 39831626, 79663252, 159326504, 2608971503, 5217943006, 10435886012, 20871772024]

約数ペア:

[(1, 20871772024), (2, 10435886012), (4, 5217943006), (8, 2608971503), (131, 159326504), (262, 79663252), (524, 39831626), (1048, 19915813), (4057, 5144632), (4909, 4251736), (8114, 2572316), (9818, 2125868), (16228, 1286158), (19636, 1062934), (32456, 643079), (39272, 531467)]