21000888009

素因数分解:

$3^3\times {\mathrm{32573}}^1\times {\mathrm{23879}}^1$

素因数の和:56461

約数の個数: 16

約数和(自身を含む): 31114684800

約数和(自身を除く): 10113796791

約数列:

[1, 3, 9, 27, 23879, 32573, 71637, 97719, 214911, 293157, 644733, 879471, 777810667, 2333432001, 7000296003, 21000888009]

約数ペア:

[(1, 21000888009), (3, 7000296003), (9, 2333432001), (27, 777810667), (23879, 879471), (32573, 644733), (71637, 293157), (97719, 214911)]