18238948

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{563}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 39795840

約数和(自身を除く): 21556892

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 89, 91, 178, 182, 356, 364, 563, 623, 1126, 1157, 1246, 2252, 2314, 2492, 3941, 4628, 7319, 7882, 8099, 14638, 15764, 16198, 29276, 32396, 50107, 51233, 100214, 102466, 200428, 204932, 350749, 651391, 701498, 1302782, 1402996, 2605564, 4559737, 9119474, 18238948]

約数ペア:

[(1, 18238948), (2, 9119474), (4, 4559737), (7, 2605564), (13, 1402996), (14, 1302782), (26, 701498), (28, 651391), (52, 350749), (89, 204932), (91, 200428), (178, 102466), (182, 100214), (356, 51233), (364, 50107), (563, 32396), (623, 29276), (1126, 16198), (1157, 15764), (1246, 14638), (2252, 8099), (2314, 7882), (2492, 7319), (3941, 4628)]