20988896554

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1103}}^1\times {\mathrm{3943}}^1$

素因数の和:5194

約数の個数: 32

約数和(自身を含む): 33440071680

約数和(自身を除く): 12451175126

約数列:

[1, 2, 19, 38, 127, 254, 1103, 2206, 2413, 3943, 4826, 7886, 20957, 41914, 74917, 140081, 149834, 280162, 500761, 1001522, 2661539, 4349129, 5323078, 8698258, 9514459, 19028918, 82633451, 165266902, 552339383, 1104678766, 10494448277, 20988896554]

約数ペア:

[(1, 20988896554), (2, 10494448277), (19, 1104678766), (38, 552339383), (127, 165266902), (254, 82633451), (1103, 19028918), (2206, 9514459), (2413, 8698258), (3943, 5323078), (4826, 4349129), (7886, 2661539), (20957, 1001522), (41914, 500761), (74917, 280162), (140081, 149834)]