19515303

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 31977120

約数和(自身を除く): 12461817

約数列:

[1, 3, 9, 17, 27, 41, 51, 61, 123, 153, 183, 289, 369, 459, 549, 697, 867, 1037, 1107, 1647, 2091, 2501, 2601, 3111, 6273, 7503, 7803, 9333, 11849, 17629, 18819, 22509, 27999, 35547, 42517, 52887, 67527, 106641, 127551, 158661, 319923, 382653, 475983, 722789, 1147959, 2168367, 6505101, 19515303]

約数ペア:

[(1, 19515303), (3, 6505101), (9, 2168367), (17, 1147959), (27, 722789), (41, 475983), (51, 382653), (61, 319923), (123, 158661), (153, 127551), (183, 106641), (289, 67527), (369, 52887), (459, 42517), (549, 35547), (697, 27999), (867, 22509), (1037, 18819), (1107, 17629), (1647, 11849), (2091, 9333), (2501, 7803), (2601, 7503), (3111, 6273)]