21134510980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2311}}^1\times {\mathrm{3779}}^1$

素因数の和:6121

約数の個数: 72

約数和(自身を含む): 48818064960

約数和(自身を除く): 27683553980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2311, 2420, 3779, 4622, 7558, 9244, 11555, 15116, 18895, 23110, 25421, 37790, 41569, 46220, 50842, 75580, 83138, 101684, 127105, 166276, 207845, 254210, 279631, 415690, 457259, 508420, 559262, 831380, 914518, 1118524, 1398155, 1829036, 2286295, 2796310, 4572590, 5592620, 8733269, 9145180, 17466538, 34933076, 43666345, 87332690, 96065959, 174665380, 192131918, 384263836, 480329795, 960659590, 1056725549, 1921319180, 2113451098, 4226902196, 5283627745, 10567255490, 21134510980]

約数ペア:

[(1, 21134510980), (2, 10567255490), (4, 5283627745), (5, 4226902196), (10, 2113451098), (11, 1921319180), (20, 1056725549), (22, 960659590), (44, 480329795), (55, 384263836), (110, 192131918), (121, 174665380), (220, 96065959), (242, 87332690), (484, 43666345), (605, 34933076), (1210, 17466538), (2311, 9145180), (2420, 8733269), (3779, 5592620), (4622, 4572590), (7558, 2796310), (9244, 2286295), (11555, 1829036), (15116, 1398155), (18895, 1118524), (23110, 914518), (25421, 831380), (37790, 559262), (41569, 508420), (46220, 457259), (50842, 415690), (75580, 279631), (83138, 254210), (101684, 207845), (127105, 166276)]