19646816

素因数分解:

$2^5\times 7^1\times {\mathrm{139}}^1\times {\mathrm{631}}^1$

素因数の和:787

約数の個数: 48

約数和(自身を含む): 44593920

約数和(自身を除く): 24947104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 139, 224, 278, 556, 631, 973, 1112, 1262, 1946, 2224, 2524, 3892, 4417, 4448, 5048, 7784, 8834, 10096, 15568, 17668, 20192, 31136, 35336, 70672, 87709, 141344, 175418, 350836, 613963, 701672, 1227926, 1403344, 2455852, 2806688, 4911704, 9823408, 19646816]

約数ペア:

[(1, 19646816), (2, 9823408), (4, 4911704), (7, 2806688), (8, 2455852), (14, 1403344), (16, 1227926), (28, 701672), (32, 613963), (56, 350836), (112, 175418), (139, 141344), (224, 87709), (278, 70672), (556, 35336), (631, 31136), (973, 20192), (1112, 17668), (1262, 15568), (1946, 10096), (2224, 8834), (2524, 7784), (3892, 5048), (4417, 4448)]