20120875691

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{21191}}^1$

素因数の和:21395

約数の個数: 32

約数和(自身を含む): 24901447680

約数和(自身を除く): 4780571989

約数列:

[1, 7, 17, 79, 101, 119, 553, 707, 1343, 1717, 7979, 9401, 12019, 21191, 55853, 135643, 148337, 360247, 949501, 1674089, 2140291, 2521729, 11718623, 14982037, 28459513, 36384947, 169082989, 199216591, 254694629, 1183580923, 2874410813, 20120875691]

約数ペア:

[(1, 20120875691), (7, 2874410813), (17, 1183580923), (79, 254694629), (101, 199216591), (119, 169082989), (553, 36384947), (707, 28459513), (1343, 14982037), (1717, 11718623), (7979, 2521729), (9401, 2140291), (12019, 1674089), (21191, 949501), (55853, 360247), (135643, 148337)]