21947980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47713}}^1$

素因数の和:47745

約数の個数: 24

約数和(自身を含む): 48095712

約数和(自身を除く): 26147732

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 47713, 95426, 190852, 238565, 477130, 954260, 1097399, 2194798, 4389596, 5486995, 10973990, 21947980]

約数ペア:

[(1, 21947980), (2, 10973990), (4, 5486995), (5, 4389596), (10, 2194798), (20, 1097399), (23, 954260), (46, 477130), (92, 238565), (115, 190852), (230, 95426), (460, 47713)]