21151728

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{11299}}^1$

素因数の和:11326

約数の個数: 60

約数和(自身を含む): 63754600

約数和(自身を除く): 42602872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 11299, 22598, 33897, 45196, 67794, 90392, 101691, 135588, 146887, 180784, 203382, 271176, 293774, 406764, 440661, 542352, 587548, 813528, 881322, 1175096, 1321983, 1627056, 1762644, 2350192, 2643966, 3525288, 5287932, 7050576, 10575864, 21151728]

約数ペア:

[(1, 21151728), (2, 10575864), (3, 7050576), (4, 5287932), (6, 3525288), (8, 2643966), (9, 2350192), (12, 1762644), (13, 1627056), (16, 1321983), (18, 1175096), (24, 881322), (26, 813528), (36, 587548), (39, 542352), (48, 440661), (52, 406764), (72, 293774), (78, 271176), (104, 203382), (117, 180784), (144, 146887), (156, 135588), (208, 101691), (234, 90392), (312, 67794), (468, 45196), (624, 33897), (936, 22598), (1872, 11299)]