18441904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{88663}}^1$

素因数の和:88684

約数の個数: 20

約数和(自身を含む): 38480176

約数和(自身を除く): 20038272

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 88663, 177326, 354652, 709304, 1152619, 1418608, 2305238, 4610476, 9220952, 18441904]

約数ペア:

[(1, 18441904), (2, 9220952), (4, 4610476), (8, 2305238), (13, 1418608), (16, 1152619), (26, 709304), (52, 354652), (104, 177326), (208, 88663)]