206743551

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{138661}}^1$

素因数の和:138742

約数の個数: 16

約数和(自身を含む): 319477248

約数和(自身を除く): 112733697

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 138661, 415983, 970627, 2911881, 9844931, 29534793, 68914517, 206743551]

約数ペア:

[(1, 206743551), (3, 68914517), (7, 29534793), (21, 9844931), (71, 2911881), (213, 970627), (497, 415983), (1491, 138661)]