18142893

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1$

素因数の和:131

約数の個数: 48

約数和(自身を含む): 30101760

約数和(自身を除く): 11958867

約数列:

[1, 3, 9, 17, 27, 29, 47, 51, 87, 141, 153, 261, 423, 459, 493, 783, 799, 841, 1269, 1363, 1479, 2397, 2523, 4089, 4437, 7191, 7569, 12267, 13311, 14297, 21573, 22707, 23171, 36801, 39527, 42891, 69513, 118581, 128673, 208539, 355743, 386019, 625617, 671959, 1067229, 2015877, 6047631, 18142893]

約数ペア:

[(1, 18142893), (3, 6047631), (9, 2015877), (17, 1067229), (27, 671959), (29, 625617), (47, 386019), (51, 355743), (87, 208539), (141, 128673), (153, 118581), (261, 69513), (423, 42891), (459, 39527), (493, 36801), (783, 23171), (799, 22707), (841, 21573), (1269, 14297), (1363, 13311), (1479, 12267), (2397, 7569), (2523, 7191), (4089, 4437)]