21431590

素因数分解:

$2^1\times 5^1\times {\mathrm{283}}^1\times {\mathrm{7573}}^1$

素因数の和:7863

約数の個数: 16

約数和(自身を含む): 38718288

約数和(自身を除く): 17286698

約数列:

[1, 2, 5, 10, 283, 566, 1415, 2830, 7573, 15146, 37865, 75730, 2143159, 4286318, 10715795, 21431590]

約数ペア:

[(1, 21431590), (2, 10715795), (5, 4286318), (10, 2143159), (283, 75730), (566, 37865), (1415, 15146), (2830, 7573)]