20178954446

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1068461}}^1$

素因数の和:1068560

約数の個数: 32

約数和(自身を含む): 36926046720

約数和(自身を除く): 16747092274

約数列:

[1, 2, 7, 14, 19, 38, 71, 133, 142, 266, 497, 994, 1349, 2698, 9443, 18886, 1068461, 2136922, 7479227, 14958454, 20300759, 40601518, 75860731, 142105313, 151721462, 284210626, 531025117, 1062050234, 1441353889, 2882707778, 10089477223, 20178954446]

約数ペア:

[(1, 20178954446), (2, 10089477223), (7, 2882707778), (14, 1441353889), (19, 1062050234), (38, 531025117), (71, 284210626), (133, 151721462), (142, 142105313), (266, 75860731), (497, 40601518), (994, 20300759), (1349, 14958454), (2698, 7479227), (9443, 2136922), (18886, 1068461)]