40721859

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{8521}}^1$

素因数の和:8592

約数の個数: 20

約数和(自身を含む): 61869720

約数和(自身を除く): 21147861

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4779, 8521, 25563, 76689, 230067, 502739, 690201, 1508217, 4524651, 13573953, 40721859]

約数ペア:

[(1, 40721859), (3, 13573953), (9, 4524651), (27, 1508217), (59, 690201), (81, 502739), (177, 230067), (531, 76689), (1593, 25563), (4779, 8521)]