28305168927

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70940273}}^1$

素因数の和:70940302

約数の個数: 16

約数和(自身を含む): 45401775360

約数和(自身を除く): 17096606433

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 70940273, 212820819, 496581911, 1347865187, 1489745733, 4043595561, 9435056309, 28305168927]

約数ペア:

[(1, 28305168927), (3, 9435056309), (7, 4043595561), (19, 1489745733), (21, 1347865187), (57, 496581911), (133, 212820819), (399, 70940273)]