18105213

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12143}}^1$

素因数の和:12224

約数の個数: 16

約数和(自身を含む): 27979776

約数和(自身を除く): 9874563

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 12143, 36429, 85001, 255003, 862153, 2586459, 6035071, 18105213]

約数ペア:

[(1, 18105213), (3, 6035071), (7, 2586459), (21, 862153), (71, 255003), (213, 85001), (497, 36429), (1491, 12143)]