21159468

素因数分解:

$2^2\times 3^5\times {\mathrm{11}}^1\times {\mathrm{1979}}^1$

素因数の和:2009

約数の個数: 72

約数和(自身を含む): 60540480

約数和(自身を除く): 39381012

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 81, 99, 108, 132, 162, 198, 243, 297, 324, 396, 486, 594, 891, 972, 1188, 1782, 1979, 2673, 3564, 3958, 5346, 5937, 7916, 10692, 11874, 17811, 21769, 23748, 35622, 43538, 53433, 65307, 71244, 87076, 106866, 130614, 160299, 195921, 213732, 261228, 320598, 391842, 480897, 587763, 641196, 783684, 961794, 1175526, 1763289, 1923588, 2351052, 3526578, 5289867, 7053156, 10579734, 21159468]

約数ペア:

[(1, 21159468), (2, 10579734), (3, 7053156), (4, 5289867), (6, 3526578), (9, 2351052), (11, 1923588), (12, 1763289), (18, 1175526), (22, 961794), (27, 783684), (33, 641196), (36, 587763), (44, 480897), (54, 391842), (66, 320598), (81, 261228), (99, 213732), (108, 195921), (132, 160299), (162, 130614), (198, 106866), (243, 87076), (297, 71244), (324, 65307), (396, 53433), (486, 43538), (594, 35622), (891, 23748), (972, 21769), (1188, 17811), (1782, 11874), (1979, 10692), (2673, 7916), (3564, 5937), (3958, 5346)]