9781785

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{727}}^1$

素因数の和:774

約数の個数: 48

約数和(自身を含む): 19079424

約数和(自身を除く): 9297639

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 115, 117, 195, 207, 299, 345, 585, 727, 897, 1035, 1495, 2181, 2691, 3635, 4485, 6543, 9451, 10905, 13455, 16721, 28353, 32715, 47255, 50163, 83605, 85059, 141765, 150489, 217373, 250815, 425295, 652119, 752445, 1086865, 1956357, 3260595, 9781785]

約数ペア:

[(1, 9781785), (3, 3260595), (5, 1956357), (9, 1086865), (13, 752445), (15, 652119), (23, 425295), (39, 250815), (45, 217373), (65, 150489), (69, 141765), (115, 85059), (117, 83605), (195, 50163), (207, 47255), (299, 32715), (345, 28353), (585, 16721), (727, 13455), (897, 10905), (1035, 9451), (1495, 6543), (2181, 4485), (2691, 3635)]