978117

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{991}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 1523712

約数和(自身を除く): 545595

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 991, 2973, 6937, 20811, 46577, 139731, 326039, 978117]

約数ペア:

[(1, 978117), (3, 326039), (7, 139731), (21, 46577), (47, 20811), (141, 6937), (329, 2973), (987, 991)]