20722744

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2357}}^1$

素因数の和:2527

約数の個数: 32

約数和(自身を含む): 44707680

約数和(自身を除く): 23984936

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 2357, 4396, 4714, 8792, 9428, 16499, 18856, 32998, 65996, 131992, 370049, 740098, 1480196, 2590343, 2960392, 5180686, 10361372, 20722744]

約数ペア:

[(1, 20722744), (2, 10361372), (4, 5180686), (7, 2960392), (8, 2590343), (14, 1480196), (28, 740098), (56, 370049), (157, 131992), (314, 65996), (628, 32998), (1099, 18856), (1256, 16499), (2198, 9428), (2357, 8792), (4396, 4714)]