21351105

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16361}}^1$

素因数の和:16401

約数の個数: 24

約数和(自身を含む): 38287080

約数和(自身を除く): 16935975

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16361, 49083, 81805, 147249, 245415, 474469, 736245, 1423407, 2372345, 4270221, 7117035, 21351105]

約数ペア:

[(1, 21351105), (3, 7117035), (5, 4270221), (9, 2372345), (15, 1423407), (29, 736245), (45, 474469), (87, 245415), (145, 147249), (261, 81805), (435, 49083), (1305, 16361)]