20625668

素因数分解:

$2^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2239}}^1$

素因数の和:2304

約数の個数: 36

約数和(自身を含む): 42900480

約数和(自身を除く): 22274812

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 329, 658, 1316, 2239, 2303, 4478, 4606, 8956, 9212, 15673, 31346, 62692, 105233, 109711, 210466, 219422, 420932, 438844, 736631, 1473262, 2946524, 5156417, 10312834, 20625668]

約数ペア:

[(1, 20625668), (2, 10312834), (4, 5156417), (7, 2946524), (14, 1473262), (28, 736631), (47, 438844), (49, 420932), (94, 219422), (98, 210466), (188, 109711), (196, 105233), (329, 62692), (658, 31346), (1316, 15673), (2239, 9212), (2303, 8956), (4478, 4606)]