21000325628

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{317}}^1\times {\mathrm{563}}^1\times {\mathrm{1279}}^1$

素因数の和:2186

約数の個数: 48

約数和(自身を含む): 38567854080

約数和(自身を除く): 17567528452

約数列:

[1, 2, 4, 23, 46, 92, 317, 563, 634, 1126, 1268, 1279, 2252, 2558, 5116, 7291, 12949, 14582, 25898, 29164, 29417, 51796, 58834, 117668, 178471, 356942, 405443, 713884, 720077, 810886, 1440154, 1621772, 2880308, 4104833, 8209666, 9325189, 16419332, 16561771, 18650378, 33123542, 37300756, 66247084, 228264409, 456528818, 913057636, 5250081407, 10500162814, 21000325628]

約数ペア:

[(1, 21000325628), (2, 10500162814), (4, 5250081407), (23, 913057636), (46, 456528818), (92, 228264409), (317, 66247084), (563, 37300756), (634, 33123542), (1126, 18650378), (1268, 16561771), (1279, 16419332), (2252, 9325189), (2558, 8209666), (5116, 4104833), (7291, 2880308), (12949, 1621772), (14582, 1440154), (25898, 810886), (29164, 720077), (29417, 713884), (51796, 405443), (58834, 356942), (117668, 178471)]