20520486

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{54287}}^1$

素因数の和:54305

約数の個数: 32

約数和(自身を含む): 52116480

約数和(自身を除く): 31595994

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 54287, 108574, 162861, 325722, 380009, 488583, 760018, 977166, 1140027, 1465749, 2280054, 2931498, 3420081, 6840162, 10260243, 20520486]

約数ペア:

[(1, 20520486), (2, 10260243), (3, 6840162), (6, 3420081), (7, 2931498), (9, 2280054), (14, 1465749), (18, 1140027), (21, 977166), (27, 760018), (42, 488583), (54, 380009), (63, 325722), (126, 162861), (189, 108574), (378, 54287)]