17490921

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{11731}}^1$

素因数の和:11812

約数の個数: 16

約数和(自身を含む): 27030528

約数和(自身を除く): 9539607

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 11731, 35193, 82117, 246351, 832901, 2498703, 5830307, 17490921]

約数ペア:

[(1, 17490921), (3, 5830307), (7, 2498703), (21, 832901), (71, 246351), (213, 82117), (497, 35193), (1491, 11731)]