2748249

素因数分解:

$3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:187

約数の個数: 40

約数和(自身を含む): 4855488

約数和(自身を除く): 2107239

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 131, 189, 259, 333, 393, 567, 777, 917, 999, 1179, 2331, 2751, 2997, 3537, 4847, 6993, 8253, 10611, 14541, 20979, 24759, 33929, 43623, 74277, 101787, 130869, 305361, 392607, 916083, 2748249]

約数ペア:

[(1, 2748249), (3, 916083), (7, 392607), (9, 305361), (21, 130869), (27, 101787), (37, 74277), (63, 43623), (81, 33929), (111, 24759), (131, 20979), (189, 14541), (259, 10611), (333, 8253), (393, 6993), (567, 4847), (777, 3537), (917, 2997), (999, 2751), (1179, 2331)]