2787129

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{1811}}^1$

素因数の和:1842

約数の個数: 20

約数和(自身を含む): 4385040

約数和(自身を除く): 1597911

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 1811, 5433, 16299, 34409, 48897, 103227, 146691, 309681, 929043, 2787129]

約数ペア:

[(1, 2787129), (3, 929043), (9, 309681), (19, 146691), (27, 103227), (57, 48897), (81, 34409), (171, 16299), (513, 5433), (1539, 1811)]