20921856004

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1511}}^1\times {\mathrm{1531}}^1$

素因数の和:3089

約数の個数: 96

約数和(自身を含む): 46698301440

約数和(自身を除く): 25776445436

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 133, 238, 266, 323, 476, 532, 646, 1292, 1511, 1531, 2261, 3022, 3062, 4522, 6044, 6124, 9044, 10577, 10717, 21154, 21434, 25687, 26027, 28709, 29089, 42308, 42868, 51374, 52054, 57418, 58178, 102748, 104108, 114836, 116356, 179809, 182189, 200963, 203623, 359618, 364378, 401926, 407246, 488053, 494513, 719236, 728756, 803852, 814492, 976106, 989026, 1952212, 1978052, 2313341, 3416371, 3461591, 4626682, 6832742, 6923182, 9253364, 13665484, 13846364, 16193387, 32386774, 39326797, 43953479, 64773548, 78653594, 87906958, 157307188, 175813916, 275287579, 307674353, 550575158, 615348706, 747209143, 1101150316, 1230697412, 1494418286, 2988836572, 5230464001, 10460928002, 20921856004]

約数ペア:

[(1, 20921856004), (2, 10460928002), (4, 5230464001), (7, 2988836572), (14, 1494418286), (17, 1230697412), (19, 1101150316), (28, 747209143), (34, 615348706), (38, 550575158), (68, 307674353), (76, 275287579), (119, 175813916), (133, 157307188), (238, 87906958), (266, 78653594), (323, 64773548), (476, 43953479), (532, 39326797), (646, 32386774), (1292, 16193387), (1511, 13846364), (1531, 13665484), (2261, 9253364), (3022, 6923182), (3062, 6832742), (4522, 4626682), (6044, 3461591), (6124, 3416371), (9044, 2313341), (10577, 1978052), (10717, 1952212), (21154, 989026), (21434, 976106), (25687, 814492), (26027, 803852), (28709, 728756), (29089, 719236), (42308, 494513), (42868, 488053), (51374, 407246), (52054, 401926), (57418, 364378), (58178, 359618), (102748, 203623), (104108, 200963), (114836, 182189), (116356, 179809)]