21484791

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{13487}}^1$

素因数の和:13555

約数の個数: 16

約数和(自身を含む): 32371200

約数和(自身を除く): 10886409

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 13487, 40461, 121383, 364149, 795733, 2387199, 7161597, 21484791]

約数ペア:

[(1, 21484791), (3, 7161597), (9, 2387199), (27, 795733), (59, 364149), (177, 121383), (531, 40461), (1593, 13487)]