21996079

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 24

約数和(自身を含む): 27232128

約数和(自身を除く): 5236049

約数列:

[1, 7, 17, 83, 119, 131, 289, 581, 917, 1411, 2023, 2227, 9877, 10873, 15589, 23987, 37859, 76111, 167909, 184841, 265013, 1293887, 3142297, 21996079]

約数ペア:

[(1, 21996079), (7, 3142297), (17, 1293887), (83, 265013), (119, 184841), (131, 167909), (289, 76111), (581, 37859), (917, 23987), (1411, 15589), (2023, 10873), (2227, 9877)]