21480950

素因数分解:

$2^1\times 5^2\times {\mathrm{349}}^1\times {\mathrm{1231}}^1$

素因数の和:1592

約数の個数: 24

約数和(自身を含む): 40101600

約数和(自身を除く): 18620650

約数列:

[1, 2, 5, 10, 25, 50, 349, 698, 1231, 1745, 2462, 3490, 6155, 8725, 12310, 17450, 30775, 61550, 429619, 859238, 2148095, 4296190, 10740475, 21480950]

約数ペア:

[(1, 21480950), (2, 10740475), (5, 4296190), (10, 2148095), (25, 859238), (50, 429619), (349, 61550), (698, 30775), (1231, 17450), (1745, 12310), (2462, 8725), (3490, 6155)]