71478351

素因数分解:

$3^2\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1987}}^1$

素因数の和:2571

約数の個数: 24

約数和(自身を含む): 118262144

約数和(自身を除く): 46783793

約数列:

[1, 3, 7, 9, 21, 63, 571, 1713, 1987, 3997, 5139, 5961, 11991, 13909, 17883, 35973, 41727, 125181, 1134577, 3403731, 7942039, 10211193, 23826117, 71478351]

約数ペア:

[(1, 71478351), (3, 23826117), (7, 10211193), (9, 7942039), (21, 3403731), (63, 1134577), (571, 125181), (1713, 41727), (1987, 35973), (3997, 17883), (5139, 13909), (5961, 11991)]