1920405

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{443}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 3271392

約数和(自身を除く): 1350987

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 443, 867, 1329, 1445, 2215, 4335, 6645, 7531, 22593, 37655, 112965, 128027, 384081, 640135, 1920405]

約数ペア:

[(1, 1920405), (3, 640135), (5, 384081), (15, 128027), (17, 112965), (51, 37655), (85, 22593), (255, 7531), (289, 6645), (443, 4335), (867, 2215), (1329, 1445)]