13439945

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 17506368

約数和(自身を除く): 4066423

約数列:

[1, 5, 17, 71, 85, 131, 289, 355, 655, 1207, 1445, 2227, 6035, 9301, 11135, 20519, 37859, 46505, 102595, 158117, 189295, 790585, 2687989, 13439945]

約数ペア:

[(1, 13439945), (5, 2687989), (17, 790585), (71, 189295), (85, 158117), (131, 102595), (289, 46505), (355, 37859), (655, 20519), (1207, 11135), (1445, 9301), (2227, 6035)]