215175511

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 242240544

約数和(自身を除く): 27065033

約数列:

[1, 17, 23, 71, 337, 391, 529, 1207, 1633, 5729, 7751, 8993, 23927, 27761, 37559, 131767, 178273, 406759, 550321, 638503, 3030641, 9355457, 12657383, 215175511]

約数ペア:

[(1, 215175511), (17, 12657383), (23, 9355457), (71, 3030641), (337, 638503), (391, 550321), (529, 406759), (1207, 178273), (1633, 131767), (5729, 37559), (7751, 27761), (8993, 23927)]