21049168

素因数分解:

$2^4\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1153}}^1$

素因数の和:1331

約数の個数: 40

約数和(自身を含む): 46935488

約数和(自身を除く): 25886320

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 163, 326, 652, 1141, 1153, 1304, 2282, 2306, 2608, 4564, 4612, 8071, 9128, 9224, 16142, 18256, 18448, 32284, 64568, 129136, 187939, 375878, 751756, 1315573, 1503512, 2631146, 3007024, 5262292, 10524584, 21049168]

約数ペア:

[(1, 21049168), (2, 10524584), (4, 5262292), (7, 3007024), (8, 2631146), (14, 1503512), (16, 1315573), (28, 751756), (56, 375878), (112, 187939), (163, 129136), (326, 64568), (652, 32284), (1141, 18448), (1153, 18256), (1304, 16142), (2282, 9224), (2306, 9128), (2608, 8071), (4564, 4612)]