19541552

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13723}}^1$

素因数の和:13820

約数の個数: 20

約数和(自身を含む): 38289960

約数和(自身を除く): 18748408

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13723, 27446, 54892, 109784, 219568, 1221347, 2442694, 4885388, 9770776, 19541552]

約数ペア:

[(1, 19541552), (2, 9770776), (4, 4885388), (8, 2442694), (16, 1221347), (89, 219568), (178, 109784), (356, 54892), (712, 27446), (1424, 13723)]