18211310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 38041920

約数和(自身を除く): 19830610

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 73, 95, 101, 130, 146, 190, 202, 247, 365, 494, 505, 730, 949, 1010, 1235, 1313, 1387, 1898, 1919, 2470, 2626, 2774, 3838, 4745, 6565, 6935, 7373, 9490, 9595, 13130, 13870, 14746, 18031, 19190, 24947, 36062, 36865, 49894, 73730, 90155, 95849, 124735, 140087, 180310, 191698, 249470, 280174, 479245, 700435, 958490, 1400870, 1821131, 3642262, 9105655, 18211310]

約数ペア:

[(1, 18211310), (2, 9105655), (5, 3642262), (10, 1821131), (13, 1400870), (19, 958490), (26, 700435), (38, 479245), (65, 280174), (73, 249470), (95, 191698), (101, 180310), (130, 140087), (146, 124735), (190, 95849), (202, 90155), (247, 73730), (365, 49894), (494, 36865), (505, 36062), (730, 24947), (949, 19190), (1010, 18031), (1235, 14746), (1313, 13870), (1387, 13130), (1898, 9595), (1919, 9490), (2470, 7373), (2626, 6935), (2774, 6565), (3838, 4745)]