19511152

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:461

約数の個数: 40

約数和(自身を含む): 39441920

約数和(自身を除く): 19930768

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 139, 248, 278, 283, 496, 556, 566, 1112, 1132, 2224, 2264, 4309, 4528, 8618, 8773, 17236, 17546, 34472, 35092, 39337, 68944, 70184, 78674, 140368, 157348, 314696, 629392, 1219447, 2438894, 4877788, 9755576, 19511152]

約数ペア:

[(1, 19511152), (2, 9755576), (4, 4877788), (8, 2438894), (16, 1219447), (31, 629392), (62, 314696), (124, 157348), (139, 140368), (248, 78674), (278, 70184), (283, 68944), (496, 39337), (556, 35092), (566, 34472), (1112, 17546), (1132, 17236), (2224, 8773), (2264, 8618), (4309, 4528)]