18664912

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9803}}^1$

素因数の和:9835

約数の個数: 40

約数和(自身を含む): 43765056

約数和(自身を除く): 25100144

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 9803, 19606, 39212, 68621, 78424, 137242, 156848, 166651, 274484, 333302, 548968, 666604, 1097936, 1166557, 1333208, 2333114, 2666416, 4666228, 9332456, 18664912]

約数ペア:

[(1, 18664912), (2, 9332456), (4, 4666228), (7, 2666416), (8, 2333114), (14, 1333208), (16, 1166557), (17, 1097936), (28, 666604), (34, 548968), (56, 333302), (68, 274484), (112, 166651), (119, 156848), (136, 137242), (238, 78424), (272, 68621), (476, 39212), (952, 19606), (1904, 9803)]