18761139

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{3457}}^1$

素因数の和:3536

約数の個数: 20

約数和(自身を含む): 28452424

約数和(自身を除く): 9691285

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 3457, 5427, 10371, 31113, 93339, 231619, 280017, 694857, 2084571, 6253713, 18761139]

約数ペア:

[(1, 18761139), (3, 6253713), (9, 2084571), (27, 694857), (67, 280017), (81, 231619), (201, 93339), (603, 31113), (1809, 10371), (3457, 5427)]