639078

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 1458432

約数和(自身を除く): 819354

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 138, 253, 421, 506, 759, 842, 1263, 1518, 2526, 4631, 9262, 9683, 13893, 19366, 27786, 29049, 58098, 106513, 213026, 319539, 639078]

約数ペア:

[(1, 639078), (2, 319539), (3, 213026), (6, 106513), (11, 58098), (22, 29049), (23, 27786), (33, 19366), (46, 13893), (66, 9683), (69, 9262), (138, 4631), (253, 2526), (421, 1518), (506, 1263), (759, 842)]