641393193

素因数分解:

$3^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{20107}}^1$

素因数の和:20162

約数の個数: 32

約数和(自身を含む): 1029529600

約数和(自身を除く): 388136407

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 343, 651, 1029, 1519, 4557, 10633, 20107, 31899, 60321, 140749, 422247, 623317, 985243, 1869951, 2955729, 4363219, 6896701, 13089657, 20690103, 30542533, 91627599, 213797731, 641393193]

約数ペア:

[(1, 641393193), (3, 213797731), (7, 91627599), (21, 30542533), (31, 20690103), (49, 13089657), (93, 6896701), (147, 4363219), (217, 2955729), (343, 1869951), (651, 985243), (1029, 623317), (1519, 422247), (4557, 140749), (10633, 60321), (20107, 31899)]