19870312

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{32257}}^1$

素因数の和:32281

約数の個数: 32

約数和(自身を含む): 46451520

約数和(自身を除く): 26581208

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616, 32257, 64514, 129028, 225799, 258056, 354827, 451598, 709654, 903196, 1419308, 1806392, 2483789, 2838616, 4967578, 9935156, 19870312]

約数ペア:

[(1, 19870312), (2, 9935156), (4, 4967578), (7, 2838616), (8, 2483789), (11, 1806392), (14, 1419308), (22, 903196), (28, 709654), (44, 451598), (56, 354827), (77, 258056), (88, 225799), (154, 129028), (308, 64514), (616, 32257)]