20914856

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{373}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 40481760

約数和(自身を除く): 19566904

約数列:

[1, 2, 4, 8, 43, 86, 163, 172, 326, 344, 373, 652, 746, 1304, 1492, 2984, 7009, 14018, 16039, 28036, 32078, 56072, 60799, 64156, 121598, 128312, 243196, 486392, 2614357, 5228714, 10457428, 20914856]

約数ペア:

[(1, 20914856), (2, 10457428), (4, 5228714), (8, 2614357), (43, 486392), (86, 243196), (163, 128312), (172, 121598), (326, 64156), (344, 60799), (373, 56072), (652, 32078), (746, 28036), (1304, 16039), (1492, 14018), (2984, 7009)]