20988084

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 56855680

約数和(自身を除く): 35867596

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 73, 76, 78, 97, 114, 146, 156, 194, 219, 228, 247, 291, 292, 388, 438, 494, 582, 741, 876, 949, 988, 1164, 1261, 1387, 1482, 1843, 1898, 2522, 2774, 2847, 2964, 3686, 3783, 3796, 4161, 5044, 5529, 5548, 5694, 7081, 7372, 7566, 8322, 11058, 11388, 14162, 15132, 16644, 18031, 21243, 22116, 23959, 28324, 36062, 42486, 47918, 54093, 71877, 72124, 84972, 92053, 95836, 108186, 134539, 143754, 184106, 216372, 269078, 276159, 287508, 368212, 403617, 538156, 552318, 807234, 1104636, 1614468, 1749007, 3498014, 5247021, 6996028, 10494042, 20988084]

約数ペア:

[(1, 20988084), (2, 10494042), (3, 6996028), (4, 5247021), (6, 3498014), (12, 1749007), (13, 1614468), (19, 1104636), (26, 807234), (38, 552318), (39, 538156), (52, 403617), (57, 368212), (73, 287508), (76, 276159), (78, 269078), (97, 216372), (114, 184106), (146, 143754), (156, 134539), (194, 108186), (219, 95836), (228, 92053), (247, 84972), (291, 72124), (292, 71877), (388, 54093), (438, 47918), (494, 42486), (582, 36062), (741, 28324), (876, 23959), (949, 22116), (988, 21243), (1164, 18031), (1261, 16644), (1387, 15132), (1482, 14162), (1843, 11388), (1898, 11058), (2522, 8322), (2774, 7566), (2847, 7372), (2964, 7081), (3686, 5694), (3783, 5548), (3796, 5529), (4161, 5044)]