19939766

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:429

約数の個数: 48

約数和(自身を含む): 38782800

約数和(自身を除く): 18843034

約数列:

[1, 2, 7, 11, 14, 22, 49, 53, 77, 98, 106, 154, 349, 371, 539, 583, 698, 742, 1078, 1166, 2443, 2597, 3839, 4081, 4886, 5194, 7678, 8162, 17101, 18497, 26873, 28567, 34202, 36994, 53746, 57134, 129479, 188111, 203467, 258958, 376222, 406934, 906353, 1424269, 1812706, 2848538, 9969883, 19939766]

約数ペア:

[(1, 19939766), (2, 9969883), (7, 2848538), (11, 1812706), (14, 1424269), (22, 906353), (49, 406934), (53, 376222), (77, 258958), (98, 203467), (106, 188111), (154, 129479), (349, 57134), (371, 53746), (539, 36994), (583, 34202), (698, 28567), (742, 26873), (1078, 18497), (1166, 17101), (2443, 8162), (2597, 7678), (3839, 5194), (4081, 4886)]