64889979

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{280909}}^1$

素因数の和:280930

約数の個数: 16

約数和(自身を含む): 107869440

約数和(自身を除く): 42979461

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 280909, 842727, 1966363, 3089999, 5899089, 9269997, 21629993, 64889979]

約数ペア:

[(1, 64889979), (3, 21629993), (7, 9269997), (11, 5899089), (21, 3089999), (33, 1966363), (77, 842727), (231, 280909)]