678650021

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{9043}}^1$

素因数の和:9272

約数の個数: 16

約数和(自身を含む): 791820288

約数和(自身を除く): 113170267

約数列:

[1, 7, 71, 151, 497, 1057, 9043, 10721, 63301, 75047, 642053, 1365493, 4494371, 9558451, 96950003, 678650021]

約数ペア:

[(1, 678650021), (7, 96950003), (71, 9558451), (151, 4494371), (497, 1365493), (1057, 642053), (9043, 75047), (10721, 63301)]