1780491321

素因数分解:

$3^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{159671}}^1$

素因数の和:159746

約数の個数: 32

約数和(自身を含む): 3065702400

約数和(自身を除く): 1285211079

約数列:

[1, 3, 7, 9, 21, 27, 59, 63, 177, 189, 413, 531, 1239, 1593, 3717, 11151, 159671, 479013, 1117697, 1437039, 3353091, 4311117, 9420589, 10059273, 28261767, 30177819, 65944123, 84785301, 197832369, 254355903, 593497107, 1780491321]

約数ペア:

[(1, 1780491321), (3, 593497107), (7, 254355903), (9, 197832369), (21, 84785301), (27, 65944123), (59, 30177819), (63, 28261767), (177, 10059273), (189, 9420589), (413, 4311117), (531, 3353091), (1239, 1437039), (1593, 1117697), (3717, 479013), (11151, 159671)]