21542417

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{911}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 24820992

約数和(自身を除く): 3278575

約数列:

[1, 13, 17, 107, 221, 911, 1391, 1819, 11843, 15487, 23647, 97477, 201331, 1267201, 1657109, 21542417]

約数ペア:

[(1, 21542417), (13, 1657109), (17, 1267201), (107, 201331), (221, 97477), (911, 23647), (1391, 15487), (1819, 11843)]