210855393

素因数分解:

$3^4\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1447}}^1$

素因数の和:1723

約数の個数: 40

約数和(自身を含む): 361629312

約数和(自身を除く): 150773919

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 257, 567, 771, 1447, 1799, 2313, 4341, 5397, 6939, 10129, 13023, 16191, 20817, 30387, 39069, 48573, 91161, 117207, 145719, 273483, 371879, 820449, 1115637, 2603153, 3346911, 7809459, 10040733, 23428377, 30122199, 70285131, 210855393]

約数ペア:

[(1, 210855393), (3, 70285131), (7, 30122199), (9, 23428377), (21, 10040733), (27, 7809459), (63, 3346911), (81, 2603153), (189, 1115637), (257, 820449), (567, 371879), (771, 273483), (1447, 145719), (1799, 117207), (2313, 91161), (4341, 48573), (5397, 39069), (6939, 30387), (10129, 20817), (13023, 16191)]