17993989

素因数分解:

${\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{283}}^1$

素因数の和:436

約数の個数: 16

約数和(自身を含む): 20007232

約数和(自身を除く): 2013243

約数列:

[1, 13, 67, 73, 283, 871, 949, 3679, 4891, 18961, 20659, 63583, 246493, 268567, 1384153, 17993989]

約数ペア:

[(1, 17993989), (13, 1384153), (67, 268567), (73, 246493), (283, 63583), (871, 20659), (949, 18961), (3679, 4891)]