19782928

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{112403}}^1$

素因数の和:112422

約数の個数: 20

約数和(自身を含む): 41814288

約数和(自身を除く): 22031360

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 112403, 224806, 449612, 899224, 1236433, 1798448, 2472866, 4945732, 9891464, 19782928]

約数ペア:

[(1, 19782928), (2, 9891464), (4, 4945732), (8, 2472866), (11, 1798448), (16, 1236433), (22, 899224), (44, 449612), (88, 224806), (176, 112403)]