21697287

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{467}}^1\times {\mathrm{911}}^1$

素因数の和:1398

約数の個数: 16

約数和(自身を含む): 30730752

約数和(自身を除く): 9033465

約数列:

[1, 3, 17, 51, 467, 911, 1401, 2733, 7939, 15487, 23817, 46461, 425437, 1276311, 7232429, 21697287]

約数ペア:

[(1, 21697287), (3, 7232429), (17, 1276311), (51, 425437), (467, 46461), (911, 23817), (1401, 15487), (2733, 7939)]