19397785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{367}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 26310528

約数和(自身を除く): 6912743

約数列:

[1, 5, 11, 31, 55, 155, 341, 367, 961, 1705, 1835, 4037, 4805, 10571, 11377, 20185, 52855, 56885, 125147, 352687, 625735, 1763435, 3879557, 19397785]

約数ペア:

[(1, 19397785), (5, 3879557), (11, 1763435), (31, 625735), (55, 352687), (155, 125147), (341, 56885), (367, 52855), (961, 20185), (1705, 11377), (1835, 10571), (4037, 4805)]