21956265

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1063}}^1$

素因数の和:1100

約数の個数: 48

約数和(自身を含む): 41827968

約数和(自身を除く): 19871703

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 459, 765, 1063, 1215, 1377, 2295, 3189, 4131, 5315, 6885, 9567, 15945, 18071, 20655, 28701, 47835, 54213, 86103, 90355, 143505, 162639, 258309, 271065, 430515, 487917, 813195, 1291545, 1463751, 2439585, 4391253, 7318755, 21956265]

約数ペア:

[(1, 21956265), (3, 7318755), (5, 4391253), (9, 2439585), (15, 1463751), (17, 1291545), (27, 813195), (45, 487917), (51, 430515), (81, 271065), (85, 258309), (135, 162639), (153, 143505), (243, 90355), (255, 86103), (405, 54213), (459, 47835), (765, 28701), (1063, 20655), (1215, 18071), (1377, 15945), (2295, 9567), (3189, 6885), (4131, 5315)]