261778671

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2087}}^1$

素因数の和:2292

約数の個数: 48

約数和(自身を含む): 474259968

約数和(自身を除く): 212481297

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 181, 231, 543, 693, 1267, 1629, 1991, 2087, 3801, 5973, 6261, 11403, 13937, 14609, 17919, 18783, 22957, 41811, 43827, 68871, 125433, 131481, 160699, 206613, 377747, 482097, 1133241, 1446291, 2644229, 3399723, 4155217, 7932687, 12465651, 23798061, 29086519, 37396953, 87259557, 261778671]

約数ペア:

[(1, 261778671), (3, 87259557), (7, 37396953), (9, 29086519), (11, 23798061), (21, 12465651), (33, 7932687), (63, 4155217), (77, 3399723), (99, 2644229), (181, 1446291), (231, 1133241), (543, 482097), (693, 377747), (1267, 206613), (1629, 160699), (1991, 131481), (2087, 125433), (3801, 68871), (5973, 43827), (6261, 41811), (11403, 22957), (13937, 18783), (14609, 17919)]