20831608

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 47013120

約数和(自身を除く): 26181512

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 43, 56, 82, 86, 164, 172, 211, 287, 301, 328, 344, 422, 574, 602, 844, 1148, 1204, 1477, 1688, 1763, 2296, 2408, 2954, 3526, 5908, 7052, 8651, 9073, 11816, 12341, 14104, 17302, 18146, 24682, 34604, 36292, 49364, 60557, 63511, 69208, 72584, 98728, 121114, 127022, 242228, 254044, 371993, 484456, 508088, 743986, 1487972, 2603951, 2975944, 5207902, 10415804, 20831608]

約数ペア:

[(1, 20831608), (2, 10415804), (4, 5207902), (7, 2975944), (8, 2603951), (14, 1487972), (28, 743986), (41, 508088), (43, 484456), (56, 371993), (82, 254044), (86, 242228), (164, 127022), (172, 121114), (211, 98728), (287, 72584), (301, 69208), (328, 63511), (344, 60557), (422, 49364), (574, 36292), (602, 34604), (844, 24682), (1148, 18146), (1204, 17302), (1477, 14104), (1688, 12341), (1763, 11816), (2296, 9073), (2408, 8651), (2954, 7052), (3526, 5908)]