18512469

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 29877120

約数和(自身を除く): 11364651

約数列:

[1, 3, 9, 27, 29, 37, 71, 81, 87, 111, 213, 243, 261, 333, 639, 783, 999, 1073, 1917, 2059, 2349, 2627, 2997, 3219, 5751, 6177, 7047, 7881, 8991, 9657, 17253, 18531, 23643, 28971, 55593, 70929, 76183, 86913, 166779, 212787, 228549, 260739, 500337, 638361, 685647, 2056941, 6170823, 18512469]

約数ペア:

[(1, 18512469), (3, 6170823), (9, 2056941), (27, 685647), (29, 638361), (37, 500337), (71, 260739), (81, 228549), (87, 212787), (111, 166779), (213, 86913), (243, 76183), (261, 70929), (333, 55593), (639, 28971), (783, 23643), (999, 18531), (1073, 17253), (1917, 9657), (2059, 8991), (2349, 7881), (2627, 7047), (2997, 6177), (3219, 5751)]