18120016

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{16903}}^1$

素因数の和:16978

約数の個数: 20

約数和(自身を含む): 35633632

約数和(自身を除く): 17513616

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 16903, 33806, 67612, 135224, 270448, 1132501, 2265002, 4530004, 9060008, 18120016]

約数ペア:

[(1, 18120016), (2, 9060008), (4, 4530004), (8, 2265002), (16, 1132501), (67, 270448), (134, 135224), (268, 67612), (536, 33806), (1072, 16903)]