2781783

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:636

約数の個数: 20

約数和(自身を含む): 4231128

約数和(自身を除く): 1449345

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 563, 1647, 1689, 4941, 5067, 15201, 34343, 45603, 103029, 309087, 927261, 2781783]

約数ペア:

[(1, 2781783), (3, 927261), (9, 309087), (27, 103029), (61, 45603), (81, 34343), (183, 15201), (549, 5067), (563, 4941), (1647, 1689)]