20898584

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2377}}^1$

素因数の和:2547

約数の個数: 32

約数和(自身を含む): 45086880

約数和(自身を除く): 24188296

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 2377, 4396, 4754, 8792, 9508, 16639, 19016, 33278, 66556, 133112, 373189, 746378, 1492756, 2612323, 2985512, 5224646, 10449292, 20898584]

約数ペア:

[(1, 20898584), (2, 10449292), (4, 5224646), (7, 2985512), (8, 2612323), (14, 1492756), (28, 746378), (56, 373189), (157, 133112), (314, 66556), (628, 33278), (1099, 19016), (1256, 16639), (2198, 9508), (2377, 8792), (4396, 4754)]