20656866

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{641}}^1$

素因数の和:818

約数の個数: 32

約数和(自身を含む): 42710976

約数和(自身を除く): 22054110

約数列:

[1, 2, 3, 6, 41, 82, 123, 131, 246, 262, 393, 641, 786, 1282, 1923, 3846, 5371, 10742, 16113, 26281, 32226, 52562, 78843, 83971, 157686, 167942, 251913, 503826, 3442811, 6885622, 10328433, 20656866]

約数ペア:

[(1, 20656866), (2, 10328433), (3, 6885622), (6, 3442811), (41, 503826), (82, 251913), (123, 167942), (131, 157686), (246, 83971), (262, 78843), (393, 52562), (641, 32226), (786, 26281), (1282, 16113), (1923, 10742), (3846, 5371)]