21654378

素因数分解:

$2^1\times 3^4\times {\mathrm{133669}}^1$

素因数の和:133683

約数の個数: 20

約数和(自身を含む): 48522210

約数和(自身を除く): 26867832

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 133669, 267338, 401007, 802014, 1203021, 2406042, 3609063, 7218126, 10827189, 21654378]

約数ペア:

[(1, 21654378), (2, 10827189), (3, 7218126), (6, 3609063), (9, 2406042), (18, 1203021), (27, 802014), (54, 401007), (81, 267338), (162, 133669)]