21490004536

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2683567}}^1$

素因数の和:2683604

約数の個数: 64

約数和(自身を含む): 54100730880

約数和(自身を除く): 32610726344

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 4004, 8008, 2683567, 5367134, 10734268, 18784969, 21468536, 29519237, 34886371, 37569938, 59038474, 69772742, 75139876, 118076948, 139545484, 150279752, 206634659, 236153896, 244204597, 279090968, 383750081, 413269318, 488409194, 767500162, 826538636, 976818388, 1535000324, 1653077272, 1953636776, 2686250567, 3070000648, 5372501134, 10745002268, 21490004536]

約数ペア:

[(1, 21490004536), (2, 10745002268), (4, 5372501134), (7, 3070000648), (8, 2686250567), (11, 1953636776), (13, 1653077272), (14, 1535000324), (22, 976818388), (26, 826538636), (28, 767500162), (44, 488409194), (52, 413269318), (56, 383750081), (77, 279090968), (88, 244204597), (91, 236153896), (104, 206634659), (143, 150279752), (154, 139545484), (182, 118076948), (286, 75139876), (308, 69772742), (364, 59038474), (572, 37569938), (616, 34886371), (728, 29519237), (1001, 21468536), (1144, 18784969), (2002, 10734268), (4004, 5367134), (8008, 2683567)]