56821989

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2687}}^1$

素因数の和:2769

約数の個数: 32

約数和(自身を含む): 92897280

約数和(自身を除く): 36075291

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 1007, 1113, 2687, 3021, 7049, 8061, 18809, 21147, 51053, 56427, 142411, 153159, 357371, 427233, 996877, 1072113, 2705809, 2990631, 8117427, 18940663, 56821989]

約数ペア:

[(1, 56821989), (3, 18940663), (7, 8117427), (19, 2990631), (21, 2705809), (53, 1072113), (57, 996877), (133, 427233), (159, 357371), (371, 153159), (399, 142411), (1007, 56427), (1113, 51053), (2687, 21147), (3021, 18809), (7049, 8061)]