7920213

素因数分解:

$3^1\times 7^3\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:246

約数の個数: 32

約数和(自身を含む): 12672000

約数和(自身を除く): 4751787

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 179, 301, 343, 537, 903, 1029, 1253, 2107, 3759, 6321, 7697, 8771, 14749, 23091, 26313, 44247, 53879, 61397, 161637, 184191, 377153, 1131459, 2640071, 7920213]

約数ペア:

[(1, 7920213), (3, 2640071), (7, 1131459), (21, 377153), (43, 184191), (49, 161637), (129, 61397), (147, 53879), (179, 44247), (301, 26313), (343, 23091), (537, 14749), (903, 8771), (1029, 7697), (1253, 6321), (2107, 3759)]