21855756

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^3\times {\mathrm{829}}^1$

素因数の和:875

約数の個数: 48

約数和(自身を含む): 55311200

約数和(自身を除く): 33455444

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 829, 1014, 1658, 2028, 2197, 2487, 3316, 4394, 4974, 6591, 8788, 9948, 10777, 13182, 21554, 26364, 32331, 43108, 64662, 129324, 140101, 280202, 420303, 560404, 840606, 1681212, 1821313, 3642626, 5463939, 7285252, 10927878, 21855756]

約数ペア:

[(1, 21855756), (2, 10927878), (3, 7285252), (4, 5463939), (6, 3642626), (12, 1821313), (13, 1681212), (26, 840606), (39, 560404), (52, 420303), (78, 280202), (156, 140101), (169, 129324), (338, 64662), (507, 43108), (676, 32331), (829, 26364), (1014, 21554), (1658, 13182), (2028, 10777), (2197, 9948), (2487, 8788), (3316, 6591), (4394, 4974)]