21446240

素因数分解:

$2^5\times 5^1\times {\mathrm{134039}}^1$

素因数の和:134054

約数の個数: 24

約数和(自身を含む): 50667120

約数和(自身を除く): 29220880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 134039, 268078, 536156, 670195, 1072312, 1340390, 2144624, 2680780, 4289248, 5361560, 10723120, 21446240]

約数ペア:

[(1, 21446240), (2, 10723120), (4, 5361560), (5, 4289248), (8, 2680780), (10, 2144624), (16, 1340390), (20, 1072312), (32, 670195), (40, 536156), (80, 268078), (160, 134039)]