28017591

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{19913}}^1$

素因数の和:19990

約数の個数: 16

約数和(自身を含む): 43332864

約数和(自身を除く): 15315273

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 19913, 59739, 139391, 418173, 1334171, 4002513, 9339197, 28017591]

約数ペア:

[(1, 28017591), (3, 9339197), (7, 4002513), (21, 1334171), (67, 418173), (201, 139391), (469, 59739), (1407, 19913)]