21063425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1709}}^1$

素因数の和:1765

約数の個数: 24

約数和(自身を含む): 28625400

約数和(自身を除く): 7561975

約数列:

[1, 5, 17, 25, 29, 85, 145, 425, 493, 725, 1709, 2465, 8545, 12325, 29053, 42725, 49561, 145265, 247805, 726325, 842537, 1239025, 4212685, 21063425]

約数ペア:

[(1, 21063425), (5, 4212685), (17, 1239025), (25, 842537), (29, 726325), (85, 247805), (145, 145265), (425, 49561), (493, 42725), (725, 29053), (1709, 12325), (2465, 8545)]