71928999

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{809}}^1$

素因数の和:944

約数の個数: 32

約数和(自身を含む): 110808000

約数和(自身を除く): 38879001

約数列:

[1, 3, 9, 27, 37, 89, 111, 267, 333, 801, 809, 999, 2403, 2427, 3293, 7281, 9879, 21843, 29637, 29933, 72001, 88911, 89799, 216003, 269397, 648009, 808191, 1944027, 2664037, 7992111, 23976333, 71928999]

約数ペア:

[(1, 71928999), (3, 23976333), (9, 7992111), (27, 2664037), (37, 1944027), (89, 808191), (111, 648009), (267, 269397), (333, 216003), (801, 89799), (809, 88911), (999, 72001), (2403, 29933), (2427, 29637), (3293, 21843), (7281, 9879)]