2121855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 3685824

約数和(自身を除く): 1563969

約数列:

[1, 3, 5, 15, 17, 51, 53, 85, 157, 159, 255, 265, 471, 785, 795, 901, 2355, 2669, 2703, 4505, 8007, 8321, 13345, 13515, 24963, 40035, 41605, 124815, 141457, 424371, 707285, 2121855]

約数ペア:

[(1, 2121855), (3, 707285), (5, 424371), (15, 141457), (17, 124815), (51, 41605), (53, 40035), (85, 24963), (157, 13515), (159, 13345), (255, 8321), (265, 8007), (471, 4505), (785, 2703), (795, 2669), (901, 2355)]