15521949

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{2699}}^1$

素因数の和:2782

約数の個数: 20

約数和(自身を含む): 23522400

約数和(自身を除く): 8000451

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 2699, 5751, 8097, 24291, 72873, 191629, 218619, 574887, 1724661, 5173983, 15521949]

約数ペア:

[(1, 15521949), (3, 5173983), (9, 1724661), (27, 574887), (71, 218619), (81, 191629), (213, 72873), (639, 24291), (1917, 8097), (2699, 5751)]