19405738

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 48

約数和(自身を含む): 34904520

約数和(自身を除く): 15498782

約数列:

[1, 2, 11, 17, 22, 34, 53, 89, 106, 121, 178, 187, 242, 374, 583, 901, 979, 1166, 1513, 1802, 1958, 2057, 3026, 4114, 4717, 6413, 9434, 9911, 10769, 12826, 16643, 19822, 21538, 33286, 51887, 80189, 103774, 109021, 160378, 183073, 218042, 366146, 570757, 882079, 1141514, 1764158, 9702869, 19405738]

約数ペア:

[(1, 19405738), (2, 9702869), (11, 1764158), (17, 1141514), (22, 882079), (34, 570757), (53, 366146), (89, 218042), (106, 183073), (121, 160378), (178, 109021), (187, 103774), (242, 80189), (374, 51887), (583, 33286), (901, 21538), (979, 19822), (1166, 16643), (1513, 12826), (1802, 10769), (1958, 9911), (2057, 9434), (3026, 6413), (4114, 4717)]