20805814911

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{797}}^1\times {\mathrm{26449}}^1$

素因数の和:27303

約数の個数: 32

約数和(自身を含む): 32420505600

約数和(自身を除く): 11614690689

約数列:

[1, 3, 7, 21, 47, 141, 329, 797, 987, 2391, 5579, 16737, 26449, 37459, 79347, 112377, 185143, 262213, 555429, 786639, 1243103, 3729309, 8701721, 21079853, 26105163, 63239559, 147558971, 442676913, 990753091, 2972259273, 6935271637, 20805814911]

約数ペア:

[(1, 20805814911), (3, 6935271637), (7, 2972259273), (21, 990753091), (47, 442676913), (141, 147558971), (329, 63239559), (797, 26105163), (987, 21079853), (2391, 8701721), (5579, 3729309), (16737, 1243103), (26449, 786639), (37459, 555429), (79347, 262213), (112377, 185143)]