172904139

素因数分解:

$3^4\times {\mathrm{331}}^1\times {\mathrm{6449}}^1$

素因数の和:6792

約数の個数: 20

約数和(自身を含む): 259109400

約数和(自身を除く): 86205261

約数列:

[1, 3, 9, 27, 81, 331, 993, 2979, 6449, 8937, 19347, 26811, 58041, 174123, 522369, 2134619, 6403857, 19211571, 57634713, 172904139]

約数ペア:

[(1, 172904139), (3, 57634713), (9, 19211571), (27, 6403857), (81, 2134619), (331, 522369), (993, 174123), (2979, 58041), (6449, 26811), (8937, 19347)]