18220412

素因数分解:

$2^2\times 7^1\times {\mathrm{521}}^1\times {\mathrm{1249}}^1$

素因数の和:1781

約数の個数: 24

約数和(自身を含む): 36540000

約数和(自身を除く): 18319588

約数列:

[1, 2, 4, 7, 14, 28, 521, 1042, 1249, 2084, 2498, 3647, 4996, 7294, 8743, 14588, 17486, 34972, 650729, 1301458, 2602916, 4555103, 9110206, 18220412]

約数ペア:

[(1, 18220412), (2, 9110206), (4, 4555103), (7, 2602916), (14, 1301458), (28, 650729), (521, 34972), (1042, 17486), (1249, 14588), (2084, 8743), (2498, 7294), (3647, 4996)]