21433480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7547}}^1$

素因数の和:7629

約数の個数: 32

約数和(自身を含む): 48911040

約数和(自身を除く): 27477560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 7547, 15094, 30188, 37735, 60376, 75470, 150940, 301880, 535837, 1071674, 2143348, 2679185, 4286696, 5358370, 10716740, 21433480]

約数ペア:

[(1, 21433480), (2, 10716740), (4, 5358370), (5, 4286696), (8, 2679185), (10, 2143348), (20, 1071674), (40, 535837), (71, 301880), (142, 150940), (284, 75470), (355, 60376), (568, 37735), (710, 30188), (1420, 15094), (2840, 7547)]