28320409

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 31497984

約数和(自身を除く): 3177575

約数列:

[1, 13, 61, 71, 503, 793, 923, 4331, 6539, 30683, 35713, 56303, 398879, 464269, 2178493, 28320409]

約数ペア:

[(1, 28320409), (13, 2178493), (61, 464269), (71, 398879), (503, 56303), (793, 35713), (923, 30683), (4331, 6539)]