18989187

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1237}}^1$

素因数の和:1307

約数の個数: 32

約数和(自身を含む): 31375872

約数和(自身を除く): 12386685

約数列:

[1, 3, 7, 17, 21, 43, 51, 119, 129, 301, 357, 731, 903, 1237, 2193, 3711, 5117, 8659, 15351, 21029, 25977, 53191, 63087, 147203, 159573, 372337, 441609, 904247, 1117011, 2712741, 6329729, 18989187]

約数ペア:

[(1, 18989187), (3, 6329729), (7, 2712741), (17, 1117011), (21, 904247), (43, 441609), (51, 372337), (119, 159573), (129, 147203), (301, 63087), (357, 53191), (731, 25977), (903, 21029), (1237, 15351), (2193, 8659), (3711, 5117)]