21253080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{177109}}^1$

素因数の和:177123

約数の個数: 32

約数和(自身を含む): 63759600

約数和(自身を除く): 42506520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 177109, 354218, 531327, 708436, 885545, 1062654, 1416872, 1771090, 2125308, 2656635, 3542180, 4250616, 5313270, 7084360, 10626540, 21253080]

約数ペア:

[(1, 21253080), (2, 10626540), (3, 7084360), (4, 5313270), (5, 4250616), (6, 3542180), (8, 2656635), (10, 2125308), (12, 1771090), (15, 1416872), (20, 1062654), (24, 885545), (30, 708436), (40, 531327), (60, 354218), (120, 177109)]