18720229

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1213}}^1$

素因数の和:1308

約数の個数: 16

約数和(自身を含む): 21677184

約数和(自身を除く): 2956955

約数列:

[1, 11, 23, 61, 253, 671, 1213, 1403, 13343, 15433, 27899, 73993, 306889, 813923, 1701839, 18720229]

約数ペア:

[(1, 18720229), (11, 1701839), (23, 813923), (61, 306889), (253, 73993), (671, 27899), (1213, 15433), (1403, 13343)]