18782564

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{4663}}^1$

素因数の和:4739

約数の個数: 24

約数和(自身を含む): 35259840

約数和(自身を除く): 16477276

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 212, 1007, 2014, 4028, 4663, 9326, 18652, 88597, 177194, 247139, 354388, 494278, 988556, 4695641, 9391282, 18782564]

約数ペア:

[(1, 18782564), (2, 9391282), (4, 4695641), (19, 988556), (38, 494278), (53, 354388), (76, 247139), (106, 177194), (212, 88597), (1007, 18652), (2014, 9326), (4028, 4663)]