21931965

素因数分解:

$3^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{547}}^1$

素因数の和:581

約数の個数: 56

約数和(自身を含む): 43125408

約数和(自身を除く): 21193443

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 243, 297, 405, 495, 547, 729, 891, 1215, 1485, 1641, 2673, 2735, 3645, 4455, 4923, 6017, 8019, 8205, 13365, 14769, 18051, 24615, 30085, 40095, 44307, 54153, 73845, 90255, 132921, 162459, 221535, 270765, 398763, 487377, 664605, 812295, 1462131, 1993815, 2436885, 4386393, 7310655, 21931965]

約数ペア:

[(1, 21931965), (3, 7310655), (5, 4386393), (9, 2436885), (11, 1993815), (15, 1462131), (27, 812295), (33, 664605), (45, 487377), (55, 398763), (81, 270765), (99, 221535), (135, 162459), (165, 132921), (243, 90255), (297, 73845), (405, 54153), (495, 44307), (547, 40095), (729, 30085), (891, 24615), (1215, 18051), (1485, 14769), (1641, 13365), (2673, 8205), (2735, 8019), (3645, 6017), (4455, 4923)]