19913271

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{14153}}^1$

素因数の和:14230

約数の個数: 16

約数和(自身を含む): 30799104

約数和(自身を除く): 10885833

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 14153, 42459, 99071, 297213, 948251, 2844753, 6637757, 19913271]

約数ペア:

[(1, 19913271), (3, 6637757), (7, 2844753), (21, 948251), (67, 297213), (201, 99071), (469, 42459), (1407, 14153)]