21151614

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 49040640

約数和(自身を除く): 27889026

約数列:

[1, 2, 3, 6, 11, 22, 29, 33, 43, 58, 66, 86, 87, 129, 174, 257, 258, 319, 473, 514, 638, 771, 946, 957, 1247, 1419, 1542, 1914, 2494, 2827, 2838, 3741, 5654, 7453, 7482, 8481, 11051, 13717, 14906, 16962, 22102, 22359, 27434, 33153, 41151, 44718, 66306, 81983, 82302, 121561, 163966, 243122, 245949, 320479, 364683, 491898, 640958, 729366, 961437, 1922874, 3525269, 7050538, 10575807, 21151614]

約数ペア:

[(1, 21151614), (2, 10575807), (3, 7050538), (6, 3525269), (11, 1922874), (22, 961437), (29, 729366), (33, 640958), (43, 491898), (58, 364683), (66, 320479), (86, 245949), (87, 243122), (129, 163966), (174, 121561), (257, 82302), (258, 81983), (319, 66306), (473, 44718), (514, 41151), (638, 33153), (771, 27434), (946, 22359), (957, 22102), (1247, 16962), (1419, 14906), (1542, 13717), (1914, 11051), (2494, 8481), (2827, 7482), (2838, 7453), (3741, 5654)]