221511267

素因数分解:

$3^5\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 346574592

約数和(自身を除く): 125063325

約数列:

[1, 3, 9, 27, 37, 71, 81, 111, 213, 243, 333, 347, 639, 999, 1041, 1917, 2627, 2997, 3123, 5751, 7881, 8991, 9369, 12839, 17253, 23643, 24637, 28107, 38517, 70929, 73911, 84321, 115551, 212787, 221733, 346653, 638361, 665199, 911569, 1039959, 1995597, 2734707, 3119877, 5986791, 8204121, 24612363, 73837089, 221511267]

約数ペア:

[(1, 221511267), (3, 73837089), (9, 24612363), (27, 8204121), (37, 5986791), (71, 3119877), (81, 2734707), (111, 1995597), (213, 1039959), (243, 911569), (333, 665199), (347, 638361), (639, 346653), (999, 221733), (1041, 212787), (1917, 115551), (2627, 84321), (2997, 73911), (3123, 70929), (5751, 38517), (7881, 28107), (8991, 24637), (9369, 23643), (12839, 17253)]