399420378

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73721}}^1$

素因数の和:73779

約数の個数: 48

約数和(自身を含む): 1012055616

約数和(自身を除く): 612635238

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 63, 86, 126, 129, 258, 301, 387, 602, 774, 903, 1806, 2709, 5418, 73721, 147442, 221163, 442326, 516047, 663489, 1032094, 1326978, 1548141, 3096282, 3170003, 4644423, 6340006, 9288846, 9510009, 19020018, 22190021, 28530027, 44380042, 57060054, 66570063, 133140126, 199710189, 399420378]

約数ペア:

[(1, 399420378), (2, 199710189), (3, 133140126), (6, 66570063), (7, 57060054), (9, 44380042), (14, 28530027), (18, 22190021), (21, 19020018), (42, 9510009), (43, 9288846), (63, 6340006), (86, 4644423), (126, 3170003), (129, 3096282), (258, 1548141), (301, 1326978), (387, 1032094), (602, 663489), (774, 516047), (903, 442326), (1806, 221163), (2709, 147442), (5418, 73721)]