21345410

素因数分解:

$2^1\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{1709}}^1$

素因数の和:2965

約数の個数: 16

約数和(自身を含む): 38475000

約数和(自身を除く): 17129590

約数列:

[1, 2, 5, 10, 1249, 1709, 2498, 3418, 6245, 8545, 12490, 17090, 2134541, 4269082, 10672705, 21345410]

約数ペア:

[(1, 21345410), (2, 10672705), (5, 4269082), (10, 2134541), (1249, 17090), (1709, 12490), (2498, 8545), (3418, 6245)]