20749171521

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{28001581}}^1$

素因数の和:28001616

約数の個数: 16

約数和(自身を含む): 31361771840

約数和(自身を除く): 10612600319

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 28001581, 84004743, 364020553, 532030039, 1092061659, 1596090117, 6916390507, 20749171521]

約数ペア:

[(1, 20749171521), (3, 6916390507), (13, 1596090117), (19, 1092061659), (39, 532030039), (57, 364020553), (247, 84004743), (741, 28001581)]