1976121

素因数分解:

$3^2\times 7^2\times {\mathrm{4481}}^1$

素因数の和:4501

約数の個数: 18

約数和(自身を含む): 3321162

約数和(自身を除く): 1345041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 4481, 13443, 31367, 40329, 94101, 219569, 282303, 658707, 1976121]

約数ペア:

[(1, 1976121), (3, 658707), (7, 282303), (9, 219569), (21, 94101), (49, 40329), (63, 31367), (147, 13443), (441, 4481)]