18207987

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{12941}}^1$

素因数の和:13018

約数の個数: 16

約数和(自身を含む): 28161792

約数和(自身を除く): 9953805

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 12941, 38823, 90587, 271761, 867047, 2601141, 6069329, 18207987]

約数ペア:

[(1, 18207987), (3, 6069329), (7, 2601141), (21, 867047), (67, 271761), (201, 90587), (469, 38823), (1407, 12941)]