2828721

素因数分解:

$3^1\times 7^3\times {\mathrm{2749}}^1$

素因数の和:2773

約数の個数: 16

約数和(自身を含む): 4400000

約数和(自身を除く): 1571279

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2749, 8247, 19243, 57729, 134701, 404103, 942907, 2828721]

約数ペア:

[(1, 2828721), (3, 942907), (7, 404103), (21, 134701), (49, 57729), (147, 19243), (343, 8247), (1029, 2749)]