20440988

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 36442560

約数和(自身を除く): 16001572

約数列:

[1, 2, 4, 109, 173, 218, 271, 346, 436, 542, 692, 1084, 18857, 29539, 37714, 46883, 59078, 75428, 93766, 118156, 187532, 5110247, 10220494, 20440988]

約数ペア:

[(1, 20440988), (2, 10220494), (4, 5110247), (109, 187532), (173, 118156), (218, 93766), (271, 75428), (346, 59078), (436, 46883), (542, 37714), (692, 29539), (1084, 18857)]