18841768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 22630232

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 59, 76, 88, 118, 152, 191, 209, 236, 382, 418, 472, 649, 764, 836, 1121, 1298, 1528, 1672, 2101, 2242, 2596, 3629, 4202, 4484, 5192, 7258, 8404, 8968, 11269, 12331, 14516, 16808, 22538, 24662, 29032, 39919, 45076, 49324, 79838, 90152, 98648, 123959, 159676, 214111, 247918, 319352, 428222, 495836, 856444, 991672, 1712888, 2355221, 4710442, 9420884, 18841768]

約数ペア:

[(1, 18841768), (2, 9420884), (4, 4710442), (8, 2355221), (11, 1712888), (19, 991672), (22, 856444), (38, 495836), (44, 428222), (59, 319352), (76, 247918), (88, 214111), (118, 159676), (152, 123959), (191, 98648), (209, 90152), (236, 79838), (382, 49324), (418, 45076), (472, 39919), (649, 29032), (764, 24662), (836, 22538), (1121, 16808), (1298, 14516), (1528, 12331), (1672, 11269), (2101, 8968), (2242, 8404), (2596, 7258), (3629, 5192), (4202, 4484)]