19929321

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1$

素因数の和:423

約数の個数: 40

約数和(自身を含む): 32382504

約数和(自身を除く): 12453183

約数列:

[1, 3, 9, 17, 27, 41, 51, 81, 123, 153, 353, 369, 459, 697, 1059, 1107, 1377, 2091, 3177, 3321, 6001, 6273, 9531, 14473, 18003, 18819, 28593, 43419, 54009, 56457, 130257, 162027, 246041, 390771, 486081, 738123, 1172313, 2214369, 6643107, 19929321]

約数ペア:

[(1, 19929321), (3, 6643107), (9, 2214369), (17, 1172313), (27, 738123), (41, 486081), (51, 390771), (81, 246041), (123, 162027), (153, 130257), (353, 56457), (369, 54009), (459, 43419), (697, 28593), (1059, 18819), (1107, 18003), (1377, 14473), (2091, 9531), (3177, 6273), (3321, 6001)]