216935179

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{109}}^2$

素因数の和:299

約数の個数: 18

約数和(自身を含む): 238141260

約数和(自身を除く): 21206081

約数列:

[1, 19, 31, 109, 589, 961, 2071, 3379, 11881, 18259, 64201, 104749, 225739, 368311, 1990231, 6997909, 11417641, 216935179]

約数ペア:

[(1, 216935179), (19, 11417641), (31, 6997909), (109, 1990231), (589, 368311), (961, 225739), (2071, 104749), (3379, 64201), (11881, 18259)]