666387

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:464

約数の個数: 20

約数和(自身を含む): 1050280

約数和(自身を除く): 383893

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 433, 513, 1299, 1539, 3897, 8227, 11691, 24681, 35073, 74043, 222129, 666387]

約数ペア:

[(1, 666387), (3, 222129), (9, 74043), (19, 35073), (27, 24681), (57, 11691), (81, 8227), (171, 3897), (433, 1539), (513, 1299)]