199995399

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:461

約数の個数: 40

約数和(自身を含む): 306226800

約数和(自身を除く): 106231401

約数列:

[1, 3, 9, 27, 73, 81, 149, 219, 227, 447, 657, 681, 1341, 1971, 2043, 4023, 5913, 6129, 10877, 12069, 16571, 18387, 32631, 33823, 49713, 97893, 101469, 149139, 293679, 304407, 447417, 881037, 913221, 1342251, 2469079, 2739663, 7407237, 22221711, 66665133, 199995399]

約数ペア:

[(1, 199995399), (3, 66665133), (9, 22221711), (27, 7407237), (73, 2739663), (81, 2469079), (149, 1342251), (219, 913221), (227, 881037), (447, 447417), (657, 304407), (681, 293679), (1341, 149139), (1971, 101469), (2043, 97893), (4023, 49713), (5913, 33823), (6129, 32631), (10877, 18387), (12069, 16571)]