2989455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 5557248

約数和(自身を除く): 2567793

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 401, 497, 1065, 1203, 1491, 2005, 2485, 2807, 6015, 7455, 8421, 14035, 28471, 42105, 85413, 142355, 199297, 427065, 597891, 996485, 2989455]

約数ペア:

[(1, 2989455), (3, 996485), (5, 597891), (7, 427065), (15, 199297), (21, 142355), (35, 85413), (71, 42105), (105, 28471), (213, 14035), (355, 8421), (401, 7455), (497, 6015), (1065, 2807), (1203, 2485), (1491, 2005)]