20412272

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{29669}}^1$

素因数の和:29720

約数の個数: 20

約数和(自身を含む): 40469880

約数和(自身を除く): 20057608

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 29669, 59338, 118676, 237352, 474704, 1275767, 2551534, 5103068, 10206136, 20412272]

約数ペア:

[(1, 20412272), (2, 10206136), (4, 5103068), (8, 2551534), (16, 1275767), (43, 474704), (86, 237352), (172, 118676), (344, 59338), (688, 29669)]