21365784

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:585

約数の個数: 96

約数和(自身を含む): 64443600

約数和(自身を除く): 43077816

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 53, 66, 72, 88, 99, 106, 132, 159, 198, 212, 264, 318, 396, 424, 477, 509, 583, 636, 792, 954, 1018, 1166, 1272, 1527, 1749, 1908, 2036, 2332, 3054, 3498, 3816, 4072, 4581, 4664, 5247, 5599, 6108, 6996, 9162, 10494, 11198, 12216, 13992, 16797, 18324, 20988, 22396, 26977, 33594, 36648, 41976, 44792, 50391, 53954, 67188, 80931, 100782, 107908, 134376, 161862, 201564, 215816, 242793, 296747, 323724, 403128, 485586, 593494, 647448, 890241, 971172, 1186988, 1780482, 1942344, 2373976, 2670723, 3560964, 5341446, 7121928, 10682892, 21365784]

約数ペア:

[(1, 21365784), (2, 10682892), (3, 7121928), (4, 5341446), (6, 3560964), (8, 2670723), (9, 2373976), (11, 1942344), (12, 1780482), (18, 1186988), (22, 971172), (24, 890241), (33, 647448), (36, 593494), (44, 485586), (53, 403128), (66, 323724), (72, 296747), (88, 242793), (99, 215816), (106, 201564), (132, 161862), (159, 134376), (198, 107908), (212, 100782), (264, 80931), (318, 67188), (396, 53954), (424, 50391), (477, 44792), (509, 41976), (583, 36648), (636, 33594), (792, 26977), (954, 22396), (1018, 20988), (1166, 18324), (1272, 16797), (1527, 13992), (1749, 12216), (1908, 11198), (2036, 10494), (2332, 9162), (3054, 6996), (3498, 6108), (3816, 5599), (4072, 5247), (4581, 4664)]