81438945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{1483}}^1$

素因数の和:2021

約数の個数: 32

約数和(自身を含む): 149302272

約数和(自身を除く): 67863327

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 523, 1483, 1569, 2615, 3661, 4449, 7415, 7845, 10381, 10983, 18305, 22245, 31143, 51905, 54915, 155715, 775609, 2326827, 3878045, 5429263, 11634135, 16287789, 27146315, 81438945]

約数ペア:

[(1, 81438945), (3, 27146315), (5, 16287789), (7, 11634135), (15, 5429263), (21, 3878045), (35, 2326827), (105, 775609), (523, 155715), (1483, 54915), (1569, 51905), (2615, 31143), (3661, 22245), (4449, 18305), (7415, 10983), (7845, 10381)]