21751893

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{787}}^1$

素因数の和:913

約数の個数: 24

約数和(自身を含む): 32698848

約数和(自身を除く): 10946955

約数列:

[1, 3, 9, 37, 83, 111, 249, 333, 747, 787, 2361, 3071, 7083, 9213, 27639, 29119, 65321, 87357, 195963, 262071, 587889, 2416877, 7250631, 21751893]

約数ペア:

[(1, 21751893), (3, 7250631), (9, 2416877), (37, 587889), (83, 262071), (111, 195963), (249, 87357), (333, 65321), (747, 29119), (787, 27639), (2361, 9213), (3071, 7083)]