261566807047

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13245901}}^1$

素因数の和:13245959

約数の個数: 24

約数和(自身を含む): 338247353472

約数和(自身を除く): 76680546425

約数列:

[1, 7, 13, 31, 49, 91, 217, 403, 637, 1519, 2821, 19747, 13245901, 92721307, 172196713, 410622931, 649049149, 1205376991, 2874360517, 5338098103, 8437638937, 20120523619, 37366686721, 261566807047]

約数ペア:

[(1, 261566807047), (7, 37366686721), (13, 20120523619), (31, 8437638937), (49, 5338098103), (91, 2874360517), (217, 1205376991), (403, 649049149), (637, 410622931), (1519, 172196713), (2821, 92721307), (19747, 13245901)]