21471345

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{22721}}^1$

素因数の和:22742

約数の個数: 32

約数和(自身を含む): 43626240

約数和(自身を除く): 22154895

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 22721, 68163, 113605, 159047, 204489, 340815, 477141, 613467, 795235, 1022445, 1431423, 2385705, 3067335, 4294269, 7157115, 21471345]

約数ペア:

[(1, 21471345), (3, 7157115), (5, 4294269), (7, 3067335), (9, 2385705), (15, 1431423), (21, 1022445), (27, 795235), (35, 613467), (45, 477141), (63, 340815), (105, 204489), (135, 159047), (189, 113605), (315, 68163), (945, 22721)]