20864632

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{463}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 40423680

約数和(自身を除く): 19559048

約数列:

[1, 2, 4, 8, 43, 86, 131, 172, 262, 344, 463, 524, 926, 1048, 1852, 3704, 5633, 11266, 19909, 22532, 39818, 45064, 60653, 79636, 121306, 159272, 242612, 485224, 2608079, 5216158, 10432316, 20864632]

約数ペア:

[(1, 20864632), (2, 10432316), (4, 5216158), (8, 2608079), (43, 485224), (86, 242612), (131, 159272), (172, 121306), (262, 79636), (344, 60653), (463, 45064), (524, 39818), (926, 22532), (1048, 19909), (1852, 11266), (3704, 5633)]