19897552

素因数分解:

$2^4\times {\mathrm{89}}^2\times {\mathrm{157}}^1$

素因数の和:343

約数の個数: 30

約数和(自身を含む): 39237878

約数和(自身を除く): 19340326

約数列:

[1, 2, 4, 8, 16, 89, 157, 178, 314, 356, 628, 712, 1256, 1424, 2512, 7921, 13973, 15842, 27946, 31684, 55892, 63368, 111784, 126736, 223568, 1243597, 2487194, 4974388, 9948776, 19897552]

約数ペア:

[(1, 19897552), (2, 9948776), (4, 4974388), (8, 2487194), (16, 1243597), (89, 223568), (157, 126736), (178, 111784), (314, 63368), (356, 55892), (628, 31684), (712, 27946), (1256, 15842), (1424, 13973), (2512, 7921)]