18748208

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{17489}}^1$

素因数の和:17564

約数の個数: 20

約数和(自身を含む): 36868920

約数和(自身を除く): 18120712

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 17489, 34978, 69956, 139912, 279824, 1171763, 2343526, 4687052, 9374104, 18748208]

約数ペア:

[(1, 18748208), (2, 9374104), (4, 4687052), (8, 2343526), (16, 1171763), (67, 279824), (134, 139912), (268, 69956), (536, 34978), (1072, 17489)]