20985465496

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{9949}}^1\times {\mathrm{13877}}^1$

素因数の和:23851

約数の個数: 32

約数和(自身を含む): 41425830000

約数和(自身を除く): 20440364504

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 9949, 13877, 19898, 27754, 39796, 55508, 79592, 111016, 189031, 263663, 378062, 527326, 756124, 1054652, 1512248, 2109304, 138062273, 276124546, 552249092, 1104498184, 2623183187, 5246366374, 10492732748, 20985465496]

約数ペア:

[(1, 20985465496), (2, 10492732748), (4, 5246366374), (8, 2623183187), (19, 1104498184), (38, 552249092), (76, 276124546), (152, 138062273), (9949, 2109304), (13877, 1512248), (19898, 1054652), (27754, 756124), (39796, 527326), (55508, 378062), (79592, 263663), (111016, 189031)]