18739593

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:499

約数の個数: 40

約数和(自身を含む): 30666240

約数和(自身を除く): 11926647

約数列:

[1, 3, 9, 17, 27, 31, 51, 81, 93, 153, 279, 439, 459, 527, 837, 1317, 1377, 1581, 2511, 3951, 4743, 7463, 11853, 13609, 14229, 22389, 35559, 40827, 42687, 67167, 122481, 201501, 231353, 367443, 604503, 694059, 1102329, 2082177, 6246531, 18739593]

約数ペア:

[(1, 18739593), (3, 6246531), (9, 2082177), (17, 1102329), (27, 694059), (31, 604503), (51, 367443), (81, 231353), (93, 201501), (153, 122481), (279, 67167), (439, 42687), (459, 40827), (527, 35559), (837, 22389), (1317, 14229), (1377, 13609), (1581, 11853), (2511, 7463), (3951, 4743)]