644481138

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{727}}^1\times {\mathrm{21107}}^1$

素因数の和:21846

約数の個数: 32

約数和(自身を含む): 1475195904

約数和(自身を除く): 830714766

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 727, 1454, 2181, 4362, 5089, 10178, 15267, 21107, 30534, 42214, 63321, 126642, 147749, 295498, 443247, 886494, 15344789, 30689578, 46034367, 92068734, 107413523, 214827046, 322240569, 644481138]

約数ペア:

[(1, 644481138), (2, 322240569), (3, 214827046), (6, 107413523), (7, 92068734), (14, 46034367), (21, 30689578), (42, 15344789), (727, 886494), (1454, 443247), (2181, 295498), (4362, 147749), (5089, 126642), (10178, 63321), (15267, 42214), (21107, 30534)]