21543774

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 51363840

約数和(自身を除く): 29820066

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 79, 86, 129, 151, 158, 237, 258, 301, 302, 453, 474, 553, 602, 903, 906, 1057, 1106, 1659, 1806, 2114, 3171, 3318, 3397, 6342, 6493, 6794, 10191, 11929, 12986, 19479, 20382, 23779, 23858, 35787, 38958, 45451, 47558, 71337, 71574, 83503, 90902, 136353, 142674, 167006, 250509, 272706, 501018, 512947, 1025894, 1538841, 3077682, 3590629, 7181258, 10771887, 21543774]

約数ペア:

[(1, 21543774), (2, 10771887), (3, 7181258), (6, 3590629), (7, 3077682), (14, 1538841), (21, 1025894), (42, 512947), (43, 501018), (79, 272706), (86, 250509), (129, 167006), (151, 142674), (158, 136353), (237, 90902), (258, 83503), (301, 71574), (302, 71337), (453, 47558), (474, 45451), (553, 38958), (602, 35787), (903, 23858), (906, 23779), (1057, 20382), (1106, 19479), (1659, 12986), (1806, 11929), (2114, 10191), (3171, 6794), (3318, 6493), (3397, 6342)]