21294939

素因数分解:

$3^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 28851200

約数和(自身を除く): 7556261

約数列:

[1, 3, 139, 223, 229, 417, 669, 687, 30997, 31831, 51067, 92991, 95493, 153201, 7098313, 21294939]

約数ペア:

[(1, 21294939), (3, 7098313), (139, 153201), (223, 95493), (229, 92991), (417, 51067), (669, 31831), (687, 30997)]