18969181

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{10711}}^1$

素因数の和:10752

約数の個数: 16

約数和(自身を含む): 24680448

約数和(自身を除く): 5711267

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 10711, 74977, 117821, 246353, 824747, 1724471, 2709883, 18969181]

約数ペア:

[(1, 18969181), (7, 2709883), (11, 1724471), (23, 824747), (77, 246353), (161, 117821), (253, 74977), (1771, 10711)]