21026117

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1789}}^1$

素因数の和:1892

約数の個数: 16

約数和(自身を含む): 25432320

約数和(自身を除く): 4406203

約数列:

[1, 7, 23, 73, 161, 511, 1679, 1789, 11753, 12523, 41147, 130597, 288029, 914179, 3003731, 21026117]

約数ペア:

[(1, 21026117), (7, 3003731), (23, 914179), (73, 288029), (161, 130597), (511, 41147), (1679, 12523), (1789, 11753)]