21233080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 54295920

約数和(自身を除く): 33062840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 107, 110, 121, 164, 205, 214, 220, 242, 328, 410, 428, 440, 451, 484, 535, 605, 820, 856, 902, 968, 1070, 1177, 1210, 1640, 1804, 2140, 2255, 2354, 2420, 3608, 4280, 4387, 4510, 4708, 4840, 4961, 5885, 8774, 9020, 9416, 9922, 11770, 12947, 17548, 18040, 19844, 21935, 23540, 24805, 25894, 35096, 39688, 43870, 47080, 48257, 49610, 51788, 64735, 87740, 96514, 99220, 103576, 129470, 175480, 193028, 198440, 241285, 258940, 386056, 482570, 517880, 530827, 965140, 1061654, 1930280, 2123308, 2654135, 4246616, 5308270, 10616540, 21233080]

約数ペア:

[(1, 21233080), (2, 10616540), (4, 5308270), (5, 4246616), (8, 2654135), (10, 2123308), (11, 1930280), (20, 1061654), (22, 965140), (40, 530827), (41, 517880), (44, 482570), (55, 386056), (82, 258940), (88, 241285), (107, 198440), (110, 193028), (121, 175480), (164, 129470), (205, 103576), (214, 99220), (220, 96514), (242, 87740), (328, 64735), (410, 51788), (428, 49610), (440, 48257), (451, 47080), (484, 43870), (535, 39688), (605, 35096), (820, 25894), (856, 24805), (902, 23540), (968, 21935), (1070, 19844), (1177, 18040), (1210, 17548), (1640, 12947), (1804, 11770), (2140, 9922), (2255, 9416), (2354, 9020), (2420, 8774), (3608, 5885), (4280, 4961), (4387, 4840), (4510, 4708)]