17998889391

素因数分解:

$3^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{280921}}^1$

素因数の和:281053

約数の個数: 40

約数和(自身を含む): 31000304544

約数和(自身を除く): 13001415153

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 113, 189, 339, 567, 791, 1017, 2373, 3051, 7119, 9153, 21357, 64071, 280921, 842763, 1966447, 2528289, 5899341, 7584867, 17698023, 22754601, 31744073, 53094069, 95232219, 159282207, 222208511, 285696657, 666625533, 857089971, 1999876599, 2571269913, 5999629797, 17998889391]

約数ペア:

[(1, 17998889391), (3, 5999629797), (7, 2571269913), (9, 1999876599), (21, 857089971), (27, 666625533), (63, 285696657), (81, 222208511), (113, 159282207), (189, 95232219), (339, 53094069), (567, 31744073), (791, 22754601), (1017, 17698023), (2373, 7584867), (3051, 5899341), (7119, 2528289), (9153, 1966447), (21357, 842763), (64071, 280921)]