21009580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{45673}}^1$

素因数の和:45705

約数の個数: 24

約数和(自身を含む): 46039392

約数和(自身を除く): 25029812

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 45673, 91346, 182692, 228365, 456730, 913460, 1050479, 2100958, 4201916, 5252395, 10504790, 21009580]

約数ペア:

[(1, 21009580), (2, 10504790), (4, 5252395), (5, 4201916), (10, 2100958), (20, 1050479), (23, 913460), (46, 456730), (92, 228365), (115, 182692), (230, 91346), (460, 45673)]