21251584

素因数分解:

$2^9\times {\mathrm{41507}}^1$

素因数の和:41525

約数の個数: 20

約数和(自身を含む): 42462684

約数和(自身を除く): 21211100

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 41507, 83014, 166028, 332056, 664112, 1328224, 2656448, 5312896, 10625792, 21251584]

約数ペア:

[(1, 21251584), (2, 10625792), (4, 5312896), (8, 2656448), (16, 1328224), (32, 664112), (64, 332056), (128, 166028), (256, 83014), (512, 41507)]