18984406

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^2\times {\mathrm{269}}^1$

素因数の和:420

約数の個数: 24

約数和(自身を含む): 33132240

約数和(自身を除く): 14147834

約数列:

[1, 2, 7, 14, 71, 142, 269, 497, 538, 994, 1883, 3766, 5041, 10082, 19099, 35287, 38198, 70574, 133693, 267386, 1356029, 2712058, 9492203, 18984406]

約数ペア:

[(1, 18984406), (2, 9492203), (7, 2712058), (14, 1356029), (71, 267386), (142, 133693), (269, 70574), (497, 38198), (538, 35287), (994, 19099), (1883, 10082), (3766, 5041)]