1991008317

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{577}}^1\times {\mathrm{1163}}^1$

素因数の和:1809

約数の個数: 32

約数和(自身を含む): 2841873408

約数和(自身を除く): 850865091

約数列:

[1, 3, 23, 43, 69, 129, 577, 989, 1163, 1731, 2967, 3489, 13271, 24811, 26749, 39813, 50009, 74433, 80247, 150027, 570653, 671051, 1150207, 1711959, 2013153, 3450621, 15434173, 28855193, 46302519, 86565579, 663669439, 1991008317]

約数ペア:

[(1, 1991008317), (3, 663669439), (23, 86565579), (43, 46302519), (69, 28855193), (129, 15434173), (577, 3450621), (989, 2013153), (1163, 1711959), (1731, 1150207), (2967, 671051), (3489, 570653), (13271, 150027), (24811, 80247), (26749, 74433), (39813, 50009)]