172117791

素因数分解:

$3^4\times {\mathrm{271}}^1\times {\mathrm{7841}}^1$

素因数の和:8124

約数の個数: 20

約数和(自身を含む): 258095904

約数和(自身を除く): 85978113

約数列:

[1, 3, 9, 27, 81, 271, 813, 2439, 7317, 7841, 21951, 23523, 70569, 211707, 635121, 2124911, 6374733, 19124199, 57372597, 172117791]

約数ペア:

[(1, 172117791), (3, 57372597), (9, 19124199), (27, 6374733), (81, 2124911), (271, 635121), (813, 211707), (2439, 70569), (7317, 23523), (7841, 21951)]