19211785

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 26376192

約数和(自身を除く): 7164407

約数列:

[1, 5, 17, 23, 31, 85, 115, 155, 317, 391, 527, 713, 1585, 1955, 2635, 3565, 5389, 7291, 9827, 12121, 26945, 36455, 49135, 60605, 123947, 167059, 226021, 619735, 835295, 1130105, 3842357, 19211785]

約数ペア:

[(1, 19211785), (5, 3842357), (17, 1130105), (23, 835295), (31, 619735), (85, 226021), (115, 167059), (155, 123947), (317, 60605), (391, 49135), (527, 36455), (713, 26945), (1585, 12121), (1955, 9827), (2635, 7291), (3565, 5389)]