2178712863

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{907}}^1\times {\mathrm{2069}}^1$

素因数の和:3028

約数の個数: 32

約数和(自身を含む): 3308025600

約数和(自身を除く): 1129312737

約数列:

[1, 3, 9, 27, 43, 129, 387, 907, 1161, 2069, 2721, 6207, 8163, 18621, 24489, 39001, 55863, 88967, 117003, 266901, 351009, 800703, 1053027, 1876583, 2402109, 5629749, 16889247, 50667741, 80693069, 242079207, 726237621, 2178712863]

約数ペア:

[(1, 2178712863), (3, 726237621), (9, 242079207), (27, 80693069), (43, 50667741), (129, 16889247), (387, 5629749), (907, 2402109), (1161, 1876583), (2069, 1053027), (2721, 800703), (6207, 351009), (8163, 266901), (18621, 117003), (24489, 88967), (39001, 55863)]