20494503

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 33696000

約数和(自身を除く): 13201497

約数列:

[1, 3, 9, 17, 29, 31, 51, 87, 93, 149, 153, 261, 279, 447, 493, 527, 899, 1341, 1479, 1581, 2533, 2697, 4321, 4437, 4619, 4743, 7599, 8091, 12963, 13857, 15283, 22797, 38889, 41571, 45849, 73457, 78523, 133951, 137547, 220371, 235569, 401853, 661113, 706707, 1205559, 2277167, 6831501, 20494503]

約数ペア:

[(1, 20494503), (3, 6831501), (9, 2277167), (17, 1205559), (29, 706707), (31, 661113), (51, 401853), (87, 235569), (93, 220371), (149, 137547), (153, 133951), (261, 78523), (279, 73457), (447, 45849), (493, 41571), (527, 38889), (899, 22797), (1341, 15283), (1479, 13857), (1581, 12963), (2533, 8091), (2697, 7599), (4321, 4743), (4437, 4619)]