644231973

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{33601}}^1$

素因数の和:33705

約数の個数: 32

約数和(自身を含む): 1083866112

約数和(自身を除く): 439634139

約数列:

[1, 3, 7, 11, 21, 33, 77, 83, 231, 249, 581, 913, 1743, 2739, 6391, 19173, 33601, 100803, 235207, 369611, 705621, 1108833, 2587277, 2788883, 7761831, 8366649, 19522181, 30677713, 58566543, 92033139, 214743991, 644231973]

約数ペア:

[(1, 644231973), (3, 214743991), (7, 92033139), (11, 58566543), (21, 30677713), (33, 19522181), (77, 8366649), (83, 7761831), (231, 2788883), (249, 2587277), (581, 1108833), (913, 705621), (1743, 369611), (2739, 235207), (6391, 100803), (19173, 33601)]