21225904

素因数分解:

$2^4\times 7^1\times {\mathrm{189517}}^1$

素因数の和:189532

約数の個数: 20

約数和(自身を含む): 47000464

約数和(自身を除く): 25774560

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189517, 379034, 758068, 1326619, 1516136, 2653238, 3032272, 5306476, 10612952, 21225904]

約数ペア:

[(1, 21225904), (2, 10612952), (4, 5306476), (7, 3032272), (8, 2653238), (14, 1516136), (16, 1326619), (28, 758068), (56, 379034), (112, 189517)]