20943494

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:213

約数の個数: 48

約数和(自身を含む): 38263104

約数和(自身を除く): 17319610

約数列:

[1, 2, 11, 13, 22, 26, 43, 86, 131, 143, 169, 262, 286, 338, 473, 559, 946, 1118, 1441, 1703, 1859, 2882, 3406, 3718, 5633, 6149, 7267, 11266, 12298, 14534, 18733, 22139, 37466, 44278, 61963, 73229, 79937, 123926, 146458, 159874, 243529, 487058, 805519, 951977, 1611038, 1903954, 10471747, 20943494]

約数ペア:

[(1, 20943494), (2, 10471747), (11, 1903954), (13, 1611038), (22, 951977), (26, 805519), (43, 487058), (86, 243529), (131, 159874), (143, 146458), (169, 123926), (262, 79937), (286, 73229), (338, 61963), (473, 44278), (559, 37466), (946, 22139), (1118, 18733), (1441, 14534), (1703, 12298), (1859, 11266), (2882, 7267), (3406, 6149), (3718, 5633)]