28701393

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{20399}}^1$

素因数の和:20476

約数の個数: 16

約数和(自身を含む): 44390400

約数和(自身を除く): 15689007

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 20399, 61197, 142793, 428379, 1366733, 4100199, 9567131, 28701393]

約数ペア:

[(1, 28701393), (3, 9567131), (7, 4100199), (21, 1366733), (67, 428379), (201, 142793), (469, 61197), (1407, 20399)]