18739708

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{647}}^1$

素因数の和:1221

約数の個数: 24

約数和(自身を含む): 35435232

約数和(自身を除く): 16695524

約数列:

[1, 2, 4, 13, 26, 52, 557, 647, 1114, 1294, 2228, 2588, 7241, 8411, 14482, 16822, 28964, 33644, 360379, 720758, 1441516, 4684927, 9369854, 18739708]

約数ペア:

[(1, 18739708), (2, 9369854), (4, 4684927), (13, 1441516), (26, 720758), (52, 360379), (557, 33644), (647, 28964), (1114, 16822), (1294, 14482), (2228, 8411), (2588, 7241)]