20290676

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9173}}^1$

素因数の和:9263

約数の個数: 24

約数和(自身を含む): 41099520

約数和(自身を除く): 20808844

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9173, 18346, 36692, 64211, 128422, 256844, 724667, 1449334, 2898668, 5072669, 10145338, 20290676]

約数ペア:

[(1, 20290676), (2, 10145338), (4, 5072669), (7, 2898668), (14, 1449334), (28, 724667), (79, 256844), (158, 128422), (316, 64211), (553, 36692), (1106, 18346), (2212, 9173)]