19764701

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 22464000

約数和(自身を除く): 2699299

約数列:

[1, 11, 31, 149, 341, 389, 1639, 4279, 4619, 12059, 50809, 57961, 132649, 637571, 1796791, 19764701]

約数ペア:

[(1, 19764701), (11, 1796791), (31, 637571), (149, 132649), (341, 57961), (389, 50809), (1639, 12059), (4279, 4619)]