18721768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5807}}^1$

素因数の和:5857

約数の個数: 32

約数和(自身を含む): 39029760

約数和(自身を除く): 20307992

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 5807, 11614, 23228, 46456, 75491, 150982, 180017, 301964, 360034, 603928, 720068, 1440136, 2340221, 4680442, 9360884, 18721768]

約数ペア:

[(1, 18721768), (2, 9360884), (4, 4680442), (8, 2340221), (13, 1440136), (26, 720068), (31, 603928), (52, 360034), (62, 301964), (104, 180017), (124, 150982), (248, 75491), (403, 46456), (806, 23228), (1612, 11614), (3224, 5807)]