21321894

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{683}}^1$

素因数の和:753

約数の個数: 48

約数和(自身を含む): 48033216

約数和(自身を除く): 26711322

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 121, 129, 242, 258, 363, 473, 683, 726, 946, 1366, 1419, 2049, 2838, 4098, 5203, 7513, 10406, 15026, 15609, 22539, 29369, 31218, 45078, 58738, 82643, 88107, 165286, 176214, 247929, 323059, 495858, 646118, 969177, 1938354, 3553649, 7107298, 10660947, 21321894]

約数ペア:

[(1, 21321894), (2, 10660947), (3, 7107298), (6, 3553649), (11, 1938354), (22, 969177), (33, 646118), (43, 495858), (66, 323059), (86, 247929), (121, 176214), (129, 165286), (242, 88107), (258, 82643), (363, 58738), (473, 45078), (683, 31218), (726, 29369), (946, 22539), (1366, 15609), (1419, 15026), (2049, 10406), (2838, 7513), (4098, 5203)]