20734996989

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{775633}}^1$

素因数の和:775729

約数の個数: 32

約数和(自身を含む): 33755591680

約数和(自身を除く): 13020594691

約数列:

[1, 3, 7, 19, 21, 57, 67, 133, 201, 399, 469, 1273, 1407, 3819, 8911, 26733, 775633, 2326899, 5429431, 14737027, 16288293, 44211081, 51967411, 103159189, 155902233, 309477567, 363771877, 987380809, 1091315631, 2962142427, 6911665663, 20734996989]

約数ペア:

[(1, 20734996989), (3, 6911665663), (7, 2962142427), (19, 1091315631), (21, 987380809), (57, 363771877), (67, 309477567), (133, 155902233), (201, 103159189), (399, 51967411), (469, 44211081), (1273, 16288293), (1407, 14737027), (3819, 5429431), (8911, 2326899), (26733, 775633)]